Dyfyniad APA

(2006). English for professional success. Boston, MA: Thomson ELT.

Dyfyniad Arddull Chicago

English for Professional Success. Boston, MA: Thomson ELT, 2006.

Dyfyniad MLA

English for Professional Success. Boston, MA: Thomson ELT, 2006.

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