Naunton, J. (2000). Head for business: Intermediate student's book. Oxford: Open University Press.
Dyfyniad Arddull ChicagoNaunton, Jon. Head for Business: Intermediate Student's Book. Oxford: Open University Press, 2000.
Dyfyniad MLANaunton, Jon. Head for Business: Intermediate Student's Book. Oxford: Open University Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.