Dyfyniad APA

Silverman, J., Hughes, E., & Wienbroer, D. R. (2002). Rules of thumb: A guide for writers (5th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Silverman, Jay, Elaine Hughes, and Diana Roberts Wienbroer. Rules of Thumb: A Guide for Writers. 5th ed. Boston: McGraw-Hill, 2002.

Dyfyniad MLA

Silverman, Jay, et al. Rules of Thumb: A Guide for Writers. 5th ed. McGraw-Hill, 2002.

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