Dyfyniad APA

(2005). New English life: Pre-intermediate (Business resource book).

Dyfyniad Arddull Chicago

New English Life: Pre-intermediate (Business Resource Book). 2005.

Dyfyniad MLA

New English Life: Pre-intermediate (Business Resource Book). 2005.

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