APA (7th ed.) Citation

Alcala, A. C., & Brown, W. C. (1998). Philippine amphibians: An illustrated guide. Bookmark.

Chicago Style (17th ed.) Citation

Alcala, Angel C., and Walter C. Brown. Philippine Amphibians: An Illustrated Guide. Makati City: Bookmark, 1998.

MLA (9th ed.) Citation

Alcala, Angel C., and Walter C. Brown. Philippine Amphibians: An Illustrated Guide. Bookmark, 1998.