Vortsman, H. (1993). Effective product to market management: A quality issue. Prentice-Hall.
Citace podle Chicago (17th ed.)Vortsman, H.R. Effective Product to Market Management: A Quality Issue. New York: Prentice-Hall, 1993.
Citace podle MLA (9th ed.)Vortsman, H.R. Effective Product to Market Management: A Quality Issue. Prentice-Hall, 1993.
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