Dyfyniad APA

Cotton, D. (2002). Market leader: Pre-Intermediate business english (Course book). New York: Longman.

Dyfyniad Arddull Chicago

Cotton, David. Market Leader: Pre-Intermediate Business English (Course Book). New York: Longman, 2002.

Dyfyniad MLA

Cotton, David. Market Leader: Pre-Intermediate Business English (Course Book). New York: Longman, 2002.

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