Cafarelli, E. J. (1980). Developing new products and repositioning mature brands: A risk-reduction system that produces investment alternatives. New York: John Wiley & Sons.
Chicago-tyylinen lähdeviittausCafarelli, Eugene J. Developing New Products and Repositioning Mature Brands: A Risk-reduction System That Produces Investment Alternatives. New York: John Wiley & Sons, 1980.
MLA-viiteCafarelli, Eugene J. Developing New Products and Repositioning Mature Brands: A Risk-reduction System That Produces Investment Alternatives. New York: John Wiley & Sons, 1980.
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