Gaya APA
Dittmer, P, R., Griffin, G, G. (1996).
Dimensions of the hospitality industry : an introduction (2nd edition).
New York:
Van Nostrand Reinhold.
Gaya MLA
Dittmer, Paul, R.., Griffin, Gerald, G..
"Dimensions of the hospitality industry : an introduction".
2nd edition
New York:
Van Nostrand Reinhold,
1996.
BUKU.