Tomalin, B. (2012). Key Business Skills. London: Collins.
Dyfyniad Arddull ChicagoTomalin, Barry. Key Business Skills. London: Collins, 2012.
Dyfyniad MLATomalin, Barry. Key Business Skills. London: Collins, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.