Gaya APA
Vellas, F. (1999).
The International Marketing of Travel and Tourism (A Strategic Approach) (Cetakan 1).
London:
Macmillan Press.
Gaya MLA
Vellas, Francois.
"The International Marketing of Travel and Tourism (A Strategic Approach)".
Cetakan 1
London:
Macmillan Press,
1999.
Text.