APA Style
Swarbrooke, John dkk. (2003).
Adventure Tourism : The New Frontier .
London:
Butterworth-Heinemann.
Chicago Style
Swarbrooke, John dkk.
Adventure Tourism : The New Frontier.
London:
Butterworth-Heinemann,
2003.
Text.
MLA Style
Swarbrooke, John dkk.
Adventure Tourism : The New Frontier.
London:
Butterworth-Heinemann,
2003.
Text.
Turabian Style
Swarbrooke, John dkk.
Adventure Tourism : The New Frontier.
London:
Butterworth-Heinemann,
2003.
Print.