Cita APA (7th ed.)

San Antonio, O. d. G. (2007). English for life. Anvil.

Cita Chicago (17th ed.)

San Antonio, Oliva de G. English for Life. Pasig City: Anvil, 2007.

Cita MLA (9th ed.)

San Antonio, Oliva de G. English for Life. Anvil, 2007.