Cita APA (7a ed.)

Castillo, L. L., Reyes, F. N., Cejalvo, F. V., & Tangco, J. T. (2008). College algebra and trigonometry (2nd ed.). National Book Store.

Cita Chicago Style (17a ed.)

Castillo, Leticia L., Fe N. Reyes, Flor V. Cejalvo, y Jesusa T. Tangco. College Algebra and Trigonometry. 2nd ed. Manila: National Book Store, 2008.

Cita MLA (9a ed.)

Castillo, Leticia L., et al. College Algebra and Trigonometry. 2nd ed. National Book Store, 2008.