Cita APA (7th ed.)

Cruz, O. V. (2008). Signs and times. CBCP Communications Development Foundation.

Cita Chicago (17th ed.)

Cruz, Oscar V. Signs and Times. Intramuros, Manila: CBCP Communications Development Foundation, 2008.

Cita MLA (9th ed.)

Cruz, Oscar V. Signs and Times. CBCP Communications Development Foundation, 2008.