Dyfyniad APA

Davidson, J. W., & Lytle, M. H. (2004). After the fact: The art of historical detection (5th ed.). Boston: McGraw-Hill.

Dyfyniad Arddull Chicago

Davidson, James West., and Mark H. Lytle. After the Fact: The Art of Historical Detection. 5th ed. Boston: McGraw-Hill, 2004.

Dyfyniad MLA

Davidson, James West., and Mark H. Lytle. After the Fact: The Art of Historical Detection. 5th ed. Boston: McGraw-Hill, 2004.

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