APA
Zeithaml V. A., . (2024). Services marketing. New York: McGraw-Hill.
Chicago
Zeithaml Valarie A, . 2024. Services marketing. New York: McGraw-Hill.
Harvard
Zeithaml V. A., . (2024). Services marketing. New York: McGraw-Hill.
MLA
Zeithaml Valarie A, . Services marketing. New York: McGraw-Hill. 2024.