Author
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Alabama. Dept. of Education
3
American Institute of the City of New York
3
Argentina. Ministerio de Agricultura
3
Arkansas Agricultural Experiment Station
3
Assam (India). Dept. of Agriculture
3
Canada. Agriculture Canada
3
Colorado Agricultural Experiment Station
3
Danmarks jordbrugsvidenskabelige kandidatforbund
3
E.I. du Pont de Nemours & Company. Public Relations Dept
3
Germany (West). Bundesministerium für Ernährung, Landwirtschaft und Forsten
3
Gosudarstvennyĭ agropromyshlennyĭ komitet RSFSR
3
Gosudarstvennyĭ agropromyshlennyĭ komitet Turkmenskoĭ SSR
3
Great Britain. Ministry of Agriculture and Fisheries
3
Guo li Taiwan da xue. Nong xue yuan
3
Haryana (India). Directorate of Land Records
3
Hokkaidō Nōgyō Shikenjō (Japan)
3
India. Dept. of Agricultural Research and Education
3
India. Dept. of Agriculture
3
Institut Penyelidikan dan Kemajuan Pertanian Malaysia
3
International Crops Research Institute for the Semi-arid Tropics
3
Iowa State College. Agricultural Extension Dept
3
Iowa State College. Cooperative Extension Service
3
Iowa. Dept. of Agriculture
3
Japan. Nōrinshō. Nōrin Keizaikyoku. Tōkei Chōsabu
3
Karnataka (India). Dept. of Agriculture
3
Kazakh S.S.R. Ministerstvo selʹskogo khoz︠i︡aĭstva
3
Manitoba. Manitoba Agriculture
3
Michigan. Dept. of Agriculture
3
Mississippi Agricultural and Forestry Experiment Station
3
Moskovskai︠a︡ selʹskokhozi︠a︡ĭstvennai︠a︡ akademii︠a︡ imeni K.A. Timiri︠a︡zeva
3
Nederlands Instituut van Landbouwkundig Ingenieurs
3
Niigata Daigaku. Nōgakubu
3
Nōrinshō Nōji Shikenjō (Tokyo, Japan)
3
Nōrinshō Tōkai Kinki Nōgyō Shikenjō (Japan)
3
Ohio State Horticultural Society
3
Ontario. Dept. of Agriculture. Statistics and Publications Branch
3
Pakistan Agricultural Research Council
3
Punjab (India). Land Records Dept
3
Punjab (Pakistan). Dept. of Agriculture
3
Qazaqstan KP Ortalyq Komitetī
3
Romania. Ministerul Agriculturii, Industriei Alimentare si Apelor
3
Russian S.F.S.R. Ministerstvo proizvodstva i zagotovok selʹskokhoz︠i︡aĭstvennykh produktov
3
Russian S.F.S.R. Ministerstvo sovkhozov
3
San Miguel County Farmers' and Stockgrowers' Bureau
3
Tanganyika. Department of Agriculture
3
Tōkyō Nōkō Daigaku
3
United States. Department of Agriculture
3
United States. Department of Agriculture. Statistical Reporting Service
3
United States. Office of Experiment Stations
3
Vsesoi︠u︡znyĭ institut rastenievodstva (Soviet Union)
3
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