APA Style

Zeithaml, V, A. et al (2013). Services Marketing: Integrating Customer Focus Across the Firm 6 Ed. (6). New York: Mc Graw-Hill.

MLA Style

Zeithaml, Valarie, A.. et al. "Services Marketing: Integrating Customer Focus Across the Firm 6 Ed.". 6 New York: Mc Graw-Hill, 2013. Manajemen.