Gaya APA
Middleton, V, T., Clarke, J. (2001).
Marketing in Travel and Tourism (Third Edition 2001).
Oxford:
Butterworth-Heinemann.
Gaya MLA
Middleton, Victor, T.C.., Clarke, Jackie.
"Marketing in Travel and Tourism".
Third Edition 2001
Oxford:
Butterworth-Heinemann,
2001.
Text.