Dyfyniad APA

Bullock, R. H. (2006). The Norton field guide to writing. New York: W.W. Norton & Co..

Dyfyniad Arddull Chicago

Bullock, Richard H. The Norton Field Guide to Writing. New York: W.W. Norton & Co., 2006.

Dyfyniad MLA

Bullock, Richard H. The Norton Field Guide to Writing. New York: W.W. Norton & Co., 2006.

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