APA (7th ed.) Citation

Lumabas, R. S. (1980). Plane and spherical trigonometry. Alemar-Phoenix Pub.

Chicago Style (17th ed.) Citation

Lumabas, Rogelio S. Plane and Spherical Trigonometry. Quezon City: Alemar-Phoenix Pub, 1980.

MLA (9th ed.) Citation

Lumabas, Rogelio S. Plane and Spherical Trigonometry. Alemar-Phoenix Pub, 1980.

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