APA Citatie

Butler, R. W. e., & Russell, R. A. e. b. (2010). Giants of tourism. CABI.

Chicago Style citaat

Butler, Richard W; ed, en Roslyn A; ed. by Russell. Giants of Tourism. Oxford: CABI, 2010.

MLA citatie

Butler, Richard W; ed, en Roslyn A; ed. by Russell. Giants of Tourism. CABI, 2010.