Author
Michigan Agricultural College
7
Michigan State Fair
5
Farmers' Week (East Lansing, Mich.)
3
Michigan Farmers' Institute Round-up
3
Penataran Perencanaan Pembangunan Pertanian dan Pedesaan Universitas Gadjah Mada
3
Universitas Gadjah Mada. Departemen Ekonomi Pertanian
3
Vseso︠i︡uzna︠i︡a selʹskokhoz︠i︡aĭstvenna︠i︡a vystavka
3
Friedrich-Ebert-Stiftung
2
Institut Pertanian Bogor. Fakultas Mekanisasi dan Teknologi Hasil Pertanian
2
Iowa State Fair
2
Iowa. Dept. of Agriculture
2
Michigan State Pomological Society
2
Northern Michigan Agricultural and Mechanical Society
2
Ohio State Horticultural Society
2
Prussia (Kingdom). Ministerium für die Landwirthschaftlichen Angelegenheiten
2
Rural Development Panel Seminar Manila, Philippines
2
Southeast Asia Development Advisory Group
2
Soviet Union. Ministerstvo selʹskogo khoz︠i︡aĭstva
2
Soviet Union. Ministerstvo sovkhozov
2
Texas Farmers' Congress
2
Universitas Gadjah Mada. Fakultas Pertanian
2
Upper Peninsula State Fair
2
Workshop Purna Sarjana Ekonomi Pertanian. Sekretariat
2
Yayasan Tenaga Kerja Indonesia
2
Agricultural Research Conference Amani, Tanganyika
1
Agricultural and Mechanical College of Texas
1
Akademia Rolnicza im. Augusta Cieszkowskiego w Poznaniu
1
Akademia Rolnicza im. H. Kołłątaja w Krakowie
1
Akademia Rolnicza w Krakowie
1
Antwerp (Belgium)
1
Association of Southern Agricultural Workers. Convention
1
Belgium. Home and Public Instruction Dept
1
Biologicheskiĭ institut (Akademi︠i︡a nauk SSSR)
1
Centre international des engrais chimiques
1
Clubb, Henry S. (Henry Stephen), 1827-
1
Conferência económica do impéro colonial português
1
Congres international technique et chimique des industries agricoles Brussels, Belgium
1
Congrès international technique et chimique des industries agricoles Paris, France
1
Diskusi Teknis Pembinaan dan Pengembangan Alat dan Mesin Pertanian di Daerah Transmigrasi Bogor, Indonesia
1
Diskusi Teknologi Pertanian, Perspektif Pelita III Bogor, Indonesia
1
Exposition universelle de 1867 à Paris
1
Exposition universelle internationale, 1900
1
Farmers' Week and the Housewives' Congress
1
Fertilizer World Congress Zurich
1
Germany (West). Bundesministerium für Ernährung, Landwirtschaft und Forsten
1
Grand Union Fair (Grand Rapids, Mich.)
1
Great Union Fair of Michigan (Grand Rapids, Mich.)
1
HKTI (Organization)
1
HKTI (Organization). Musyawarah Kerja Nasional
1
Hadiwijaya, Thoyib
1
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