Gaya APA
Zeithaml, V, A., Gremler, M, J, B, ;, D, D. (2006).
Services Marketing : Integrating customer focus across the firm (Ed.4).
Boston:
McGraw Hill : Irwin.
Gaya MLA
Zeithaml, Valarie, A.., Gremler, Mary, Jo, Bitner, ;, Dwayne, D..
"Services Marketing : Integrating customer focus across the firm".
Ed.4
Boston:
McGraw Hill : Irwin,
2006.
Text.