APA (7th ed.) Citation

Johnson, G. (1976). Profitable pig farming (5th (rev.) ed.). National Book Store.

Chicago Style (17th ed.) Citation

Johnson, Geoffrey. Profitable Pig Farming. 5th (rev.) ed. Metro Manila: National Book Store, 1976.

MLA (9th ed.) Citation

Johnson, Geoffrey. Profitable Pig Farming. 5th (rev.) ed. National Book Store, 1976.