Cita APA (7th ed.)

Castillo, L. L., Cejalvo, F. V., Reyes, F. N., & Tangco, J. T. (2008). College algebra and trigonometry. National Book Store.

Cita Chicago (17th ed.)

Castillo, Leticia L., Flor V. Cejalvo, Fe N. Reyes, i Jesus T. Tangco. College Algebra and Trigonometry. Mandaluyong City: National Book Store, 2008.

Cita MLA (9th ed.)

Castillo, Leticia L., et al. College Algebra and Trigonometry. National Book Store, 2008.