Cita APA (7th ed.)

Mejia, L. D. (2004). Plane trigonometry: A modern approach. Rex Book Store.

Cita Chicago (17th ed.)

Mejia, Leila DP. Plane Trigonometry: A Modern Approach. Manila: Rex Book Store, 2004.

Cita MLA (9th ed.)

Mejia, Leila DP. Plane Trigonometry: A Modern Approach. Rex Book Store, 2004.