Gaya APA

McIntosh, R, W., Gupta, S. (1980). Tourism : principles, practices, philosophies (3rd edition). Columbus, Ohio: Grid Publishing, Inc..

Gaya MLA

McIntosh, Robert, Woodrow., Gupta, Shashikant. "Tourism : principles, practices, philosophies". 3rd edition Columbus, Ohio: Grid Publishing, Inc., 1980. BUKU.