Dyfyniad APA

Kirszner, L. G., Mandell, S. R., & Kirszner, L. G. (2005). The Wadsworth handbook (7th ed.). Boston: Thomson Wadsworth.

Dyfyniad Arddull Chicago

Kirszner, Laurie G., Stephen R. Mandell, và Laurie G. Kirszner. The Wadsworth Handbook. 7th ed. Boston: Thomson Wadsworth, 2005.

Dyfyniad MLA

Kirszner, Laurie G., Stephen R. Mandell, và Laurie G. Kirszner. The Wadsworth Handbook. 7th ed. Boston: Thomson Wadsworth, 2005.

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