Walker, R. W. (2009). Oxford English for careers tourism 3 Student's book. Oxford University Press.
Dyfyniad Arddull ChicagoWalker, Robin Walker. Oxford English for Careers Tourism 3 Student's Book. Oxford University Press, 2009.
Dyfyniad MLAWalker, Robin Walker. Oxford English for Careers Tourism 3 Student's Book. Oxford University Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.