- Water hyacinth Eichhernia spp. References from ca 1920 onwards.
bibl. Commonw. Bur. Hort. Plantation Crope.
- 70 years of the Department for Fish Diseases at the Government Veterinary Institute, and the 100th anniversary of ichthyopathology in Poland.
Życie Weterynaryjne
- Panolis flammea, Schiff. A Monograph of Forest Entomology.
Zw. Zawod. Lesnik. Polsk.
- Nutritive value of water lettuce (Pistia stratiotes) and its possibility in animal feed.
Zootecnia Tropical
- The morphology of Anonchus mirabilis (Nematoda, Araeolaimida), rare and new for the USSR fauna, from Lake Khanka.
Zoologicheskiĭ Zhurnal
- Investigation of fish resources in Hechi Prefecture of Guangxi Province, with comparison of fish biodiversity between two tributaries.
Zoological Research
- Monitoring of surface water contamination resulting from atmospheric deposition and from agricultural production in mountainous catchment areas under multiple land use.
Zeszyty Naukowe Akademii Rolniczej im H. Kołłataja w Krakowie, Sesja Naukowe
- Hydrological role of coniferous forests in Rila and Pirin mountains.
Zemizdat Sofia.
- Mobility of maize herbicides in the soil and their appearance in the groundwater.
Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz
- Initial soil development from marine sediments in a lysimeter.
Zeitschrift für Pflanzenernährung und Bodenkunde
- Comparative research on the water balance between a Pinus radiata stand (D. Don) and pasture land in southern Chile.
Zeitschrift für Kulturtechnik und Landentwicklung
- Planning of the individual maintenance of small streams.
Zeitschrift für Kulturtechnik und Landentwicklung
- Loess in China and the problem of the Huanghe.
Zeitschrift für Kulturtechnik und Landentwicklung
- Estimating the mean runoff MQ from catchment characteristics in north eastern Brazil.
Zeitschrift für Kulturtechnik und Landentwicklung
- The quality of waters in various districts of Lower Saxony and possibilities of improvement by means of natural river bank strips.
Zeitschrift für Kulturtechnik und Landentwicklung
- Zambia.
Zambia.
- Prospects of fisheries in Bihar.
Yojana
- Impact of dryland development programme on cropping pattern: a case study.
Yojana
- Agro-climatic regional planning.
Yojana
- Soil conservation: impact on crop production. A case study.
Yojana
- A biogeographic and paragenetic analysis of the American Beech(Fagus).
Yearbook, American Philosophical Society, Philadelphia 1950
- Improvement of stone fruits.
Yearbook of the United States Department of Agriculture
- Yearbook of international co-operation on environment and development.
Yearbook of international co-operation on environment and development
- Yearbook of fishery statistics 1979: catches and landings.
Yearbook of fishery statistics 1979: catches and landings
- Water.
Yearbook of Agriculture 1955
- Yearb. Agric. U.S Dep. Agric.
Yearb. Agric. U. S Dep. Agric.
- Summer lettuce variety trials.
Yalova Bahce Kulturleri Arastirma ve Egitim Merkezi Dergisi
- Analysis on the relation between soil salt content and groundwater in Yutian Oasis.
Xinjiang Agricultural Sciences
- A study on ecological security and ecological compensational long-lasting mechanism of Qiemo Oasis.
Xinjiang Agricultural Sciences
- New change of oasis forestry production in Manass River Valley - open up soil and water resources, develop forestry production.
Xinjiang Agricultural Sciences
- Desert wind and tropical rain: experiences of experts of the "Deutschen Entwicklungsdienst" in environmental and resources conservation.
Wustenwind und Tropenregen: Erfahrungen von Fachkraften des Deutschen Entwicklungsdienstes in der Umwelt- und Ressourcensicherung
- Investigations of damages caused by fungi in wet mechanical wood-pulp.
World's Pap. Tr. Rev.
- World water vision. Commission report. A water secure world: vision for water, life, and the environment.
World water vision. Commission report. A water secure world: vision for water, life, and the environment
- World resources 1992-93.
World resources 1992-93
- World resources 1988-89: an assessment of the resource base that supports the global economy.
World resources 1988-89: an assessment of the resource base that supports the global economy
- World forests, markets and policies.
World forests, markets and policies
- World food resources.
World food resources
- World Water 1986: water technology for the developing world.
World Water 1986: water technology for the developing world
- A review of groundwater in islands using SWOT analysis.
World Review of Science, Technology and Sustainable Development
- Halophytic forage plants in response to irrigation with diluted seawater.
World Journal of Agricultural Sciences
- Selection of crops for sustainable utilization of land and water resources in Kuwait.
World Journal of Agricultural Sciences
- Agronomic and economic impacts of reuse secondary treated wastewater in irrigation under arid and semi-arid regions.
World Journal of Agricultural Sciences
- Effect of trickle irrigation strategies on tomato yield and on roots' distribution.
World Journal of Agricultural Sciences
- Performance of selected native plants under deficit irrigation.
World Journal of Agricultural Sciences
- Integration of traditional birth attendants into primary health care.
World Health Forum
- The greening of India: population of one billion in the year 2000.
World Farmers' Times
- Changing customary marine resource management practice and institutions: the case of sasi lola in the Kei Islands, Indonesia.
World Development
- Impediments and innovation in international rivers: the waters of South Asia.
World Development
- Irrigation in Sub-Saharan Africa: the development of public and private systems.
World Bank Technical Paper
- Watershed development in Asia: strategies and technologies.
World Bank Technical Paper
