Gaya APA
Swarbrooke, J., Horner, S. (2005).
International cases in tourism management .
Burlington:
Elsevier Butterworth-Heinemann.
Gaya MLA
Swarbrooke, John., Horner, Susan.
"International cases in tourism management".
Burlington:
Elsevier Butterworth-Heinemann,
2005.
BUKU.