Dyfyniad APA

Sosa, R. (1997). Recognition of agroforestry systems shadow-coffee and their characteristics of rentability and risk in Rivas Pérez Zeledón, Costa Rica.

Dyfyniad Arddull Chicago

Sosa, Rosa. Recognition of Agroforestry Systems Shadow-coffee and Their Characteristics of Rentability and Risk in Rivas Pérez Zeledón, Costa Rica. 1997.

Dyfyniad MLA

Sosa, Rosa. Recognition of Agroforestry Systems Shadow-coffee and Their Characteristics of Rentability and Risk in Rivas Pérez Zeledón, Costa Rica. 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.