Dyfyniad APA

Hacker, D., Sommers, N. I., Jehn, T. R., Rosenzweig, J., & Carbajal Van Horn, M. (2008). Rules for writers (6th ed.). Bedford/St. Martin's.

Dyfyniad Arddull Chicago

Hacker, Diana, Nancy I. Sommers, Thomas Robert Jehn, Jane Rosenzweig, and Marcy Carbajal Van Horn. Rules for Writers. 6th ed. Boston: Bedford/St. Martin's, 2008.

Dyfyniad MLA

Hacker, Diana, et al. Rules for Writers. 6th ed. Bedford/St. Martin's, 2008.

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