Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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