APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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

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