APA (7th ed.) Citation

Gabriel, P. B. (1992). Trigonometry (Revised edition.). Salesiana Publishers.

Chicago Style (17th ed.) Citation

Gabriel, Presentacion B. Trigonometry. Revised edition. Manila: Salesiana Publishers, 1992.

MLA (9th ed.) Citation

Gabriel, Presentacion B. Trigonometry. Revised edition. Salesiana Publishers, 1992.

Warning: These citations may not always be 100% accurate.