APA (7th ed.) Citation

Yabao, S., Feleo, A., & Sheniak, D. (2005). Cagraray: A Bicol island-world. Cagraray Environmental Protection and Development Foundation.

Chicago Style (17th ed.) Citation

Yabao, Sonny, Anita Feleo, and David Sheniak. Cagraray: A Bicol Island-world. Legazpi City: Cagraray Environmental Protection and Development Foundation, 2005.

MLA (9th ed.) Citation

Yabao, Sonny, et al. Cagraray: A Bicol Island-world. Cagraray Environmental Protection and Development Foundation, 2005.