APA Edition Citation

Butler, R., & Russell, R. A. (2010). Giants of tourism. CAB International.

Chicago Edition Citation

Butler, Richard, and Roslyn A. Russell. Giants of Tourism. UK: CAB International, 2010.

MLA Edition Citation

Butler, Richard, and Roslyn A. Russell. Giants of Tourism. CAB International, 2010.

Warning: These citations may not always be 100% accurate.