Dyfyniad APA

Walker, R., & Harding, K. (2006). Tourism: Student's book. United Kingdom: Oxford University Press.

Dyfyniad Arddull Chicago

Walker, Robin, và Keith Harding. Tourism: Student's Book. United Kingdom: Oxford University Press, 2006.

Dyfyniad MLA

Walker, Robin, và Keith Harding. Tourism: Student's Book. United Kingdom: Oxford University Press, 2006.

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