Dyfyniad APA

Levitt, T. (1962). Innovation in marketing: New perspectives for porfit and growth. McGraw Hill book company.

Dyfyniad Arddull Chicago

Levitt, Theodore. Innovation in Marketing: New Perspectives for Porfit and Growth. New York: McGraw Hill book company, 1962.

Dyfyniad MLA

Levitt, Theodore. Innovation in Marketing: New Perspectives for Porfit and Growth. McGraw Hill book company, 1962.

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