Walker, R., & Harding, K. (2007). Tourism: Teacher's resource book. New York: Oxford university Press.
Čikaški stil citiranjaWalker, Robin., i Keith Harding. Tourism: Teacher's Resource Book. New York: Oxford university Press, 2007.
MLA način citiranjaWalker, Robin., i Keith Harding. Tourism: Teacher's Resource Book. New York: Oxford university Press, 2007.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.