APA (7th ed.) Citation

Carpio, J. N., & Guillermo, J. M. (2014). Plane trigonometry. Rex Book Store.

Chicago Style (17th ed.) Citation

Carpio, Joy N., and Jaymie M. Guillermo. Plane Trigonometry. Manila: Rex Book Store, 2014.

MLA (9th ed.) Citation

Carpio, Joy N., and Jaymie M. Guillermo. Plane Trigonometry. Rex Book Store, 2014.