Dyfyniad APA

(2006). Downtown 3: English for work and life. Boston, MA: Thomson/Heinle.

Dyfyniad Arddull Chicago

Downtown 3: English for Work and Life. Boston, MA: Thomson/Heinle, 2006.

Dyfyniad MLA

Downtown 3: English for Work and Life. Boston, MA: Thomson/Heinle, 2006.

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