Author
Tōkyō Nōkō Daigaku
2
Bangladesh Agricultural University. Old Boys' Association
1
C.A.B. International. Information Services
1
Commonwealth Bureau of Soil Science
1
Commonwealth Bureau of Soils
1
Commonwealth Institute of Helminthology
1
Commonwealth Institute of Parasitology
1
Imperial Bureau of Soil Science
1
Institut Keguruan dan Ilmu Pendidikan Malang
1
Koninklijk Instituut voor de Tropen
1
Lembaga Penelitian Perikanan Laut
1
National Agricultural Library and Documentation Centre (Bangladesh)
1
National Botanical Research Institute (India). Economic Botany Information Service
1
Na︠t︡sionalen agrarno-promishlen sŭ︠i︡uz (Bulgaria). ︠T︡Sentŭr za nauchno-tekhnicheska i ikonomicheska informa︠t︡si︠i︡a
1
Na︠t︡sionalen ︠t︡sentŭr za nauchna i tekhnicheska informa︠t︡si︠i︡a po selsko stopanstvo, khranitelna promishlenost i gorsko stopanstvo (Bulgaria)
1
Simposium Modernisasi Perikanan Rakyat Jakarta, Indonesia
1
Tōkyō Daigaku. Nōgakubu
1
Unar, M.
1
︠T︡Sentŭr za nauchno-tekhnicheska i ikonomicheska informa︠t︡si︠i︡a po selsko i gorsko stopanstvo (Selskostopanska akademi︠i︡a Georgi Dimitrov)
1