Gaya APA

APR, D, E, D. (2006). EBOOK : TRAVEL AND TOURISM PUBLIC RELATIONS - An Introductory Guide For Hospitality Managers . USA: Elsevier Butterworth–Heinemann.

Gaya MLA

APR, Dennis, E., Deuschl,. "EBOOK : TRAVEL AND TOURISM PUBLIC RELATIONS - An Introductory Guide For Hospitality Managers". USA: Elsevier Butterworth–Heinemann, 2006. Text.