Dyfyniad APA

Silverman, J., & Jay Silverman; Elaine Hughes; Diana Roberts Wienbroer. (2008). Rules of thumb: A guide for writers. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Silverman, Jay, và Jay Silverman; Elaine Hughes; Diana Roberts Wienbroer. Rules of Thumb: A Guide for Writers. New York: McGraw-Hill, 2008.

Dyfyniad MLA

Silverman, Jay, và Jay Silverman; Elaine Hughes; Diana Roberts Wienbroer. Rules of Thumb: A Guide for Writers. New York: McGraw-Hill, 2008.

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