Dyfyniad APA

Guittar, J. L., Dear, F., & Vaughan, C. (2009). Scarlet Macaw (Ara macao, Psittaciformes: Psittacidae) Nest Characteristics in the Osa Peninsula Conservation Area (ACOSA), Costa Rica.

Dyfyniad Arddull Chicago

Guittar, John L., Fiona Dear, y Christopher Vaughan. Scarlet Macaw (Ara Macao, Psittaciformes: Psittacidae) Nest Characteristics in the Osa Peninsula Conservation Area (ACOSA), Costa Rica. 2009.

Dyfyniad MLA

Guittar, John L., Fiona Dear, y Christopher Vaughan. Scarlet Macaw (Ara Macao, Psittaciformes: Psittacidae) Nest Characteristics in the Osa Peninsula Conservation Area (ACOSA), Costa Rica. 2009.

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