APA-referens (7:e uppl.)

Baquiran, R. P. (2003). Onyx (U.P. Jubilee Student ed.). University of the Philippines Press.

Chicago-referens (17:e uppl.)

Baquiran, Romulo Pascual. Onyx. U.P. Jubilee Student ed. Quezon City: University of the Philippines Press, 2003.

MLA-referens (9:e uppl.)

Baquiran, Romulo Pascual. Onyx. U.P. Jubilee Student ed. University of the Philippines Press, 2003.