APA aipamena

Smykay, E. W., & Breibart, J. (1971). Introductory marketing: A programmed approach. Macmillan.

Chicago Style aipamena

Smykay, Edward W., and Joan Breibart. Introductory Marketing: A Programmed Approach. New York: Macmillan, 1971.

MLA aipamena

Smykay, Edward W., and Joan Breibart. Introductory Marketing: A Programmed Approach. Macmillan, 1971.

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