APA (7th ed.) Citation

Agapay, R. B. (1991). Logic: The essentials of deductive reasoning. National Book Store.

Chicago Style (17th ed.) Citation

Agapay, Ramon B. Logic: The Essentials of Deductive Reasoning. Metro Manila: National Book Store, 1991.

MLA (9th ed.) Citation

Agapay, Ramon B. Logic: The Essentials of Deductive Reasoning. National Book Store, 1991.