Upphovsman
Imperatorska︠i︡a voenno-medi︠t︡sinska︠i︡a akademī︠i︡a (Saint Petersburg, Russia)
2
Bergström, Catarina
1
Midwest Universities Consortium for International Activities
1
Palīenko, Dorofeĭ, b. 1853
1
Piper, Robert Aleksandrovich, b. 1850
1
Southwest Missouri State University. State Fruit Experiment Station
1
Sveriges lantbruksuniversitet
1
Tobias, J. (Joseph)
1
United States. Agency for International Development
1
Zhongguo nong ye hua xue hui
1
Zhonghua min guo shi pin ke xue ji shu xue hui
1