APA-referens

Holtje, H. F. (1981). Schaum's outline of theory and problems of marketing. Mc graw hill book company.

Chicago-stil citat

Holtje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. New York: Mc graw hill book company, 1981.

MLA-referens

Holtje, Herbert F. Schaum's Outline of Theory and Problems of Marketing. Mc graw hill book company, 1981.

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