Evenson, Robert E. Research and extension in agricultural development. San Francisco: ICS Press, 1992. 54 s. Occasional papers; 25.
Evenson, R. E. (1992). Research and extension in agricultural development. San Francisco: ICS Press.
Styl ChicagoEvenson, Robert E. Research and Extension in Agricultural Development. San Francisco: ICS Press, 1992.
Citace podle MLAEvenson, Robert E. Research and Extension in Agricultural Development. San Francisco: ICS Press, 1992.
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