APA Alıntı

Ryan, W. T. (1971). Programmed learning aid for principles of marketing. Learning systems company.

Chicago Stili Alıntı

Ryan, William T. Programmed Learning Aid for Principles of Marketing. Illinois: Learning systems company, 1971.

MLA Alıntı

Ryan, William T. Programmed Learning Aid for Principles of Marketing. Learning systems company, 1971.

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