Gaya APA
Lattin, G, W. (1985).
The Lodging And Food Service Industry (Cetakan I).
United States Of America:
The Educational Institute Of The American Hotel & Motel Association.
Gaya MLA
Lattin, Gerald, W..
"The Lodging And Food Service Industry".
Cetakan I
United States Of America:
The Educational Institute Of The American Hotel & Motel Association,
1985.
.