APA (7th ed.) Zitazioa
McDonald, W. J. (1998). Direct marketing: An integrated approach. Irwin/McGraw-Hill.
Chicago Style (17th ed.) Zitazioa
McDonald, William J. Direct Marketing: An Integrated Approach. Boston: Irwin/McGraw-Hill, 1998.
MLA (9th ed.) Zitazioa
McDonald, William J. Direct Marketing: An Integrated Approach. Irwin/McGraw-Hill, 1998.
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