Dyfyniad APA

Friend, C., & Challenger, D. (2014). Contemporary editing (3rd ed.). Routledge.

Dyfyniad Arddull Chicago

Friend, Cecilia, and Don Challenger. Contemporary Editing. 3rd ed. New York: Routledge, 2014.

Dyfyniad MLA

Friend, Cecilia, and Don Challenger. Contemporary Editing. 3rd ed. Routledge, 2014.

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