APA (7th ed.) Citation

Montemayor, F. (1980). Harmony of logic. National Book Store.

Chicago Style (17th ed.) Citation

Montemayor, Felix. Harmony of Logic. Manila: National Book Store, 1980.

MLA (9th ed.) Citation

Montemayor, Felix. Harmony of Logic. National Book Store, 1980.

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