Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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