California Farm Bureau Federation 100
Colorado Agricultural College. Extension Service 58
Université de Paris 54
Justus Liebig-Universität Giessen 50
India. Directorate of Economics and Statistics 39
Indian Council of Agricultural Research 39
Universität Zürich 31
United States. National Archives and Records Service 30
Universität Leipzig (1409-1953) 26
Universität Jena 23
Universität Halle-Wittenberg 22
Colorado A & M College. Extension Service 21
Universität Bonn 21
Gregory, R. W. (Raymond William), b. 1893 20
Hawaii Agricultural Experiment Station 19
Davis, Kary Cadmus, 1867-1936 18
Indonesia. Biro Pusat Statistik 18
United States. Department of Agriculture 18
Ohio Agricultural Experiment Station 17
Universität Göttingen 17
Colorado State College (Fort Collins, Colo.). Extension Service 16
Friedrich-Wilhelms-Universität Berlin 16
Indonesia. Departemen Pertanian 16
South Dakota Agricultural Experiment Station 16
University of Hawaii (Honolulu). Agricultural Extension Service 16
Agro-Economic Research Centre (Simla, India) 15
Landbouwhogeschool Wageningen 14
Proyek Penyempurnaan dan Pengembangan Statistik Pertanian Tanaman Pangan (Indonesia) 13
Russian S.F.S.R. Ministerstvo selʹskogo khoz︠i︡aĭstva 13
Institut ėkonomiki (Akademi︠i︡a nauk SSSR) 12
Iowa Agriculture and Home Economics Experiment Station 12
Landbouwuniversiteit Wageningen 12
North Carolina. Dept. of Agriculture 12
United States. Bureau of Agricultural Economics 12
Universität Bern 12
Universität zu Köln 12
Brazil. Serviço de Inspeção e Defesa Agrícolas 11
Faculté de droit de Paris 11
Iowa State University. Cooperative Extension Service 11
United States. Census Office 11
Universität Heidelberg 11
Vseso︠i︡uzna︠i︡a akademi︠i︡a selʹskokhoz︠i︡aĭstvennykh nauk imeni V.I. Lenina 11
Brazil. Ministério da Agricultura, Indústria e Comércio 10
Eidgenössische Technische Hochschule Zürich 10
Japan. Nōrinshō. Nōrin Keizaikyoku. Tōkei Chōsabu 10
United States. Census Office. 6th Census, 1840 10
Albertus-Universität zu Königsberg i. Pr 9
Germany (West). Bundesministerium für Ernährung, Landwirtschaft und Forsten 9
Indonesia. Direktorat Bina Program Tanaman Pangan 9
Indonesia. Kantor Statistik Provinsi Kalimantan Tengah 9
Institut istorii SSSR (Akademi︠i︡a nauk SSSR) 9
Iowa State College. Agricultural Experiment Station 9
Iowa State College. Agricultural and Home Economics Experiment Station 9
Lunds universitet 9
Ohio State Horticultural Society 9
Warren, George F. (George Frederick), 1874-1938 9
Wylie, F. V. 9
Agricultural and Mechanical College of Texas 8
Argentina. Ministerio de Agricultura 8
Australian National University 8
Göteborgs universitet 8
Indonesia. Departemen Pertanian. Biro Perencanaan 8
Institut Pertanian Bogor 8
Institut so︠t︡sialʹno-ėkonomicheskikh problem razviti︠i︡a agrarno-promyshlennogo kompleksa (Akademi︠i︡a nauk SSSR) 8
Iowa Agricultural Experiment Station 8
Karnataka (India). Dept. of Agriculture 8
Karnataka (India). Planning Dept. Project Formulation Division 8
Michigan State Farm Bureau 8
Punjab (India). Economic and Statistical Organisation 8
Roehl, Louis M. (Louis Michael), b. 1881 8
Sathasivampillai, K. 8
Texas Farmers' Congress 8
United States. Federal Extension Service 8
Universität Hamburg 8
Akademia Rolnicza im. H. Kołłątaja w Krakowie 7
Assam (India). Dept. of Agriculture 7
Bailey, L. H. (Liberty Hyde), 1858-1954 7
Bayerische Julius-Maximilians-Universität Würzburg 7
Bāṃlādeśa Pallī Unnaẏana Ekāḍemī 7
El Dorado County Farm Bureau (Calif.) 7
Gujarat (India). Directorate of Agriculture 7
India. Planning Commission. Agro-Climatic Regional Planning Unit 7
Iowa State College. Extension Service 7
Iowa State University. Agricultural and Home Economics Experiment Station 7
Landwirtschaftliche Hochschule Berlin 7
Michigan Agricultural College 7
North Dakota Agricultural College. Extension Service 7
Norway. Statistisk sentralbyrå 7
Ohio Agricultural Research and Development Center 7
Ohio. Dept. of Agriculture 7
Pakistan. Food and Agriculture Division. Planning Unit 7
Perhimpunan Ekonomi Pertanian Indonesia 7
Placer County Farm Bureau (Calif.) 7
Punjab (India). Dept. of Agriculture 7
Saeed Hafeez, 1940- 7
Santa Barbara County Farm Bureau (Calif.) 7
Soviet Union. Ministerstvo selʹskogo khoz︠i︡aĭstva 7
Sveriges lantbruksuniversitet 7
Swaminathan, Monkombu Sambasivan 7
Universidad de la República (Uruguay). Facultad de Agronomía 7