Sosa, R. (1997). Recognition of agroforestry systems shadow-coffee and their characteristics of rentability and risk in Rivas Pérez Zeledón, Costa Rica.
Čikaški stil citiranjaSosa, Rosa. Recognition of Agroforestry Systems Shadow-coffee and Their Characteristics of Rentability and Risk in Rivas Pérez Zeledón, Costa Rica. 1997.
MLA način citiranjaSosa, Rosa. Recognition of Agroforestry Systems Shadow-coffee and Their Characteristics of Rentability and Risk in Rivas Pérez Zeledón, Costa Rica. 1997.
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