APA (7th ed.) Citation

Villarmil, S. M. M. (1975). Algebra and trigonometry. Addison-Wesley.

Chicago Style (17th ed.) Citation

Villarmil, SR. MA. Mauricia. Algebra and Trigonometry. Philippines: Addison-Wesley, 1975.

MLA (9th ed.) Citation

Villarmil, SR. MA. Mauricia. Algebra and Trigonometry. Addison-Wesley, 1975.