APA (7e ed.) Bronvermelding

Wildlife Conservation Society of the Philippines, World Conservation Monitoring Centre, & Friends of the Zoos. (1997). Philippine red data book. Bookmark, Inc.

Chicago (17e ed.) Bronvermelding

Wildlife Conservation Society of the Philippines, World Conservation Monitoring Centre, en Friends of the Zoos. Philippine Red Data Book. Makati City: Bookmark, Inc, 1997.

MLA (9e ed.) Bronvermelding

Wildlife Conservation Society of the Philippines, et al. Philippine Red Data Book. Bookmark, Inc, 1997.