Dyfyniad APA

McDonald, W. J. (1998). Direct Marketing: An integrated approach. Irwin McGraw hill.

Dyfyniad Arddull Chicago

McDonald, William J. Direct Marketing: An Integrated Approach. New York: Irwin McGraw hill, 1998.

Dyfyniad MLA

McDonald, William J. Direct Marketing: An Integrated Approach. Irwin McGraw hill, 1998.

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