Author
Colorado Agricultural College. Extension Service
56
Colorado A & M College. Extension Service
21
Colorado State College (Fort Collins, Colo.). Extension Service
15
Indian Council of Agricultural Research
15
Russian S.F.S.R. Ministerstvo selʹskogo khoz︠i︡aĭstva
12
Hawaii Agricultural Experiment Station
8
India. Directorate of Economics and Statistics
8
Akademia Rolnicza im. H. Kołłątaja w Krakowie
7
Iowa State University. Cooperative Extension Service
7
Ohio Agricultural Experiment Station
7
South Dakota Agricultural Experiment Station
7
Universidad de la República (Uruguay). Facultad de Agronomía
7
Akademia Rolnicza w Krakowie
6
Indonesia. Biro Pusat Statistik
6
Punjab (India). Dept. of Agriculture
6
Soviet Union. Ministerstvo selʹskogo khoz︠i︡aĭstva
6
Vseso︠i︡uzna︠i︡a akademi︠i︡a selʹskokhoz︠i︡aĭstvennykh nauk imeni V.I. Lenina
6
Akademi︠i︡a na selskostopanskite nauki
5
Ceylon. Dept. of Agriculture
5
Deutsche Landwirtschafts-Gesellschaft (Germany : West)
5
Hawaii. Dept. of Agriculture
5
Iowa Agriculture and Home Economics Experiment Station
5
Iowa State College. Agricultural Experiment Station
5
Iowa State College. Agricultural and Home Economics Experiment Station
5
Massachusetts Society for Promoting Agriculture
5
Mysore (India : State). Bureau of Economics and Statistics
5
Ukraine. Ministerstvo silʹsʹkoho hospodarstva
5
University of Hawaii (Honolulu). Agricultural Extension Service
5
Agrártudományi Egyetem (Budapest, Hungary). Központi Könyvtár
4
Akademia Rolniczo-Techniczna w Olsztynie
4
American Farm Bureau Federation
4
Centro de Investigaciones Agrícolas del Noroeste (Mexico)
4
Cornell University. Agricultural Experiment Station
4
Deutsche Landwirtschafts-Gesellschaft
4
Gödöllői Agrártudományi Egyetem
4
Hokkaidōritsu Nōgyō Shikenjō
4
Indian Agricultural Research Institute
4
Iowa Agricultural Experiment Station
4
Iowa State Agricultural Society
4
Iowa State College. Extension Service
4
Iowa State University. Agricultural and Home Economics Experiment Station
4
Karnataka (India). Bureau of Economics and Statistics
4
Koninklijk Genootschap voor Landbouwwetenschap (Netherlands)
4
Michigan Agricultural College
4
Michigan State Farm Bureau
4
North Rhine-Westphalia (Germany). Landesausschuss für Landwirtschaftliche Forschung, Erziehung und Wirtschaftsberatung
4
Research Institute of the SPA
4
Union Agricultural Society (Chicago, Ill.)
4
University of Agricultural Sciences (Bangalore, India)
4
Wyższa Szkoła Rolnicza w Krakowie
4
more ...