Dyfyniad APA

Richert, G. H. (1974). Retailing, principles and practices (6th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Richert, Gottlieb Henry. Retailing, Principles and Practices. 6th ed. New York: McGraw-Hill, 1974.

Dyfyniad MLA

Richert, Gottlieb Henry. Retailing, Principles and Practices. 6th ed. McGraw-Hill, 1974.

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