Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.