Dyfyniad APA

Acevedo-Gutiérrez, A. (1994). First records of occurrence and nesting of three bird species at Isla del Coco, Costa Rica.

Dyfyniad Arddull Chicago

Acevedo-Gutiérrez, Alejandro. First Records of Occurrence and Nesting of Three Bird Species At Isla Del Coco, Costa Rica. 1994.

Dyfyniad MLA

Acevedo-Gutiérrez, Alejandro. First Records of Occurrence and Nesting of Three Bird Species At Isla Del Coco, Costa Rica. 1994.

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