Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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