Dyfyniad APA
Cooper,Chris, & Fletcher, J. (1998). Tourism: Principles and practice (2nd ed.). Prentice Hall.
Dyfyniad Arddull Chicago
Cooper,Chris, and John Fletcher. Tourism: Principles and Practice. 2nd ed. Harlow: Prentice Hall, 1998.
Dyfyniad MLA
Cooper,Chris, and John Fletcher. Tourism: Principles and Practice. 2nd ed. Prentice Hall, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.