APA (7th ed.) Citation

Reyes, F. N., Felix, R. A., Mapa, F. G., Tangco, J. T., & Favila, R. A. (1990). Trigonometry. National Book Store.

Chicago Style (17th ed.) Citation

Reyes, Fe N., Rene A. Felix, Felina G. Mapa, Jesusa T. Tangco, and Raymundo A. Favila. Trigonometry. Metro Manila: National Book Store, 1990.

MLA (9th ed.) Citation

Reyes, Fe N., et al. Trigonometry. National Book Store, 1990.