Dyfyniad APA

(2001). Cambridge certificate of proficiency in English ( Teacher's book ). Cambridge, UK: Cambridge Univ. Press.

Dyfyniad Arddull Chicago

Cambridge Certificate of Proficiency in English ( Teacher's Book ). Cambridge, UK: Cambridge Univ. Press, 2001.

Dyfyniad MLA

Cambridge Certificate of Proficiency in English ( Teacher's Book ). Cambridge, UK: Cambridge Univ. Press, 2001.

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