APA (7th ed.) Citation

Berry, L. L., & Parasuraman, A. (1991). Marketing services: Competing through quality. The Free Press.

Chicago Style (17th ed.) Citation

Berry, Leonard L., and A. Parasuraman. Marketing Services: Competing Through Quality. New York: The Free Press, 1991.

MLA (9th ed.) Citation

Berry, Leonard L., and A. Parasuraman. Marketing Services: Competing Through Quality. The Free Press, 1991.