Dyfyniad APA

Vaughan, C., Nemeth, N., & Marineros, L. (2006). Scarlet Macaw, Ara macao, (Psittaciformes: Psittacidae) diet in Central Pacific Costa Rica.

Dyfyniad Arddull Chicago

Vaughan, Christopher, Nicole Nemeth, y Leonel Marineros. Scarlet Macaw, Ara Macao, (Psittaciformes: Psittacidae) Diet in Central Pacific Costa Rica. 2006.

Dyfyniad MLA

Vaughan, Christopher, Nicole Nemeth, y Leonel Marineros. Scarlet Macaw, Ara Macao, (Psittaciformes: Psittacidae) Diet in Central Pacific Costa Rica. 2006.

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