Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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