Forfatter
Brazilian Government Document Digitization Project
2
Ohio State University. Department of Agricultural Economics and Rural Sociology
2
Alvarado Olea, Teodoro
1
Brazil. Ministério da Agricultura
1
Brazil. Ministério da Agricultura, Indústria e Comércio
1
Conferência económica do impéro colonial português
1
Ecuador. Ministerio de Economía
1
Iowa Agriculture and Home Economics Experiment Station
1
Iowa State University. Cooperative Extension Service
1
Mississippi Agricultural Experiment Station
1
Mississippi Agricultural and Forestry Experiment Station
1
Mississippi Agricultural and Forestry Experiment Station. Department of Agricultural Economics
1
Ohio Agricultural Research and Development Center
1
Ohio State University. Cooperative Extension Service
1
Portugal
1
Purdue University. Agricultural Extension Service
1
Purdue University. Cooperative Extension Service
1
Sabayleh, Mohammed
1
South Dakota Agricultural Experiment Station
1
South Dakota State College of Agriculture and Mechanic Arts. Economics Department
1
Soviet Union. T︠S︡entralʹnoe statisticheskoe upravlenie
1
Svavit︠s︡kai︠a︡, Z. M.
1
Svavit︠s︡kiĭ, Nikolaĭ Andreevich, 1879-1936
1
University of Nebraska (Lincoln campus). Agricultural Experiment Station
1
University of Tennessee (Knoxville campus). Agricultural Experiment Station
1
University of Tennessee (Knoxville campus). Agricultural Extension Service
1
University of Tennessee, Knoxville. Agricultural Experiment Station
1
University of Tennessee, Knoxville. Agricultural Extension Service
1
Valdez, José d'Ascensão
1