Dyfyniad APA

Gewald, N., & Rosero, P. (1979). Growth of laurel (Cordia alliodora) in coffee and cacao plantations and pastures in the atlantic region of Costa Rica.

Dyfyniad Arddull Chicago

Gewald, N., y P. Rosero. Growth of Laurel (Cordia Alliodora) in Coffee and Cacao Plantations and Pastures in the Atlantic Region of Costa Rica. 1979.

Dyfyniad MLA

Gewald, N., y P. Rosero. Growth of Laurel (Cordia Alliodora) in Coffee and Cacao Plantations and Pastures in the Atlantic Region of Costa Rica. 1979.

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