Robin Walker, K. H. (2008). "English for international tourism 3student’s book".
Dyfyniad Arddull ChicagoRobin Walker, Keith Harding. "English for International Tourism 3student’s Book". 2008.
Dyfyniad MLARobin Walker, Keith Harding. "English for International Tourism 3student’s Book". 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.