Gaya APA
Lattin, G, W. (1989).
The lodging and food service industry (2nd ed.).
Michigan:
The Educational Institute of the American Hotel & Motel Association.
Gaya MLA
Lattin, Gerald, W..
"The lodging and food service industry".
2nd ed.
Michigan:
The Educational Institute of the American Hotel & Motel Association,
1989.
BUKU.