Reyes, F. N., Felix, R. P., Mapa, F. G., & Tangco, J. (1990). Trigonometry. National Book Store.
芝加哥风格引文Reyes, Fe N., Rene P. Felix, Felina G. Mapa, 与 Jesusa Tangco. Trigonometry. Mandaluyong City: National Book Store, 1990.
MLA引文Reyes, Fe N., et al. Trigonometry. National Book Store, 1990.
警告：这些引文格式不一定是100％准确.