APA (7th ed.) Citation

Koch, C., Luzares, C. E., Rotor, N. S., & Carreon, E. S. (1982). Communication skills for college students. National Book Store.

Chicago Style (17th ed.) Citation

Koch, Carl, Casilda Edrial Luzares, Nilda Servando Rotor, and Edwina Sacramento Carreon. Communication Skills for College Students. Manila: National Book Store, 1982.

MLA (9th ed.) Citation

Koch, Carl, et al. Communication Skills for College Students. National Book Store, 1982.