Gaya APA

Powers, T., Barrows, C, W, . (2008). Introduction to the Hospitality Industry (7 th). United States of America: John Wiley & Sons, Inc..

Gaya MLA

Powers, Tom., Barrows, Clayton, W., . "Introduction to the Hospitality Industry". 7 th United States of America: John Wiley & Sons, Inc., 2008. BUKU.