Gaya APA
Hart, C, W., Troy, D, A. (1986).
Strategic Hotel / Motel Marketing (Cetakan II).
United States Of America:
The Educational Institute Of The American Hotel & Motel Association.
Gaya MLA
Hart, Christopher, W.L.., Troy, David, A..
"Strategic Hotel / Motel Marketing".
Cetakan II
United States Of America:
The Educational Institute Of The American Hotel & Motel Association,
1986.
.