Dyfyniad APA

Rodríguez, D., & Fonseca, W. (1992). Fertilization with N, P, K for Tectona grandis in Nandayure, Costa Rica.

Dyfyniad Arddull Chicago

Rodríguez, Dora, y William Fonseca. Fertilization With N, P, K for Tectona Grandis in Nandayure, Costa Rica. 1992.

Dyfyniad MLA

Rodríguez, Dora, y William Fonseca. Fertilization With N, P, K for Tectona Grandis in Nandayure, Costa Rica. 1992.

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