Roger A. Kerin, V. M. a. P. R. V. (1990). CONTEMPORARY PERSPECTIVES ON STRATEGIC MARKET PLANNING. Allyn & Bacon.
Lua i Stíl Chicago (17ú heag.)Roger A. Kerin, Vijay Mahafan and P. Rajan Varadarajan. CONTEMPORARY PERSPECTIVES ON STRATEGIC MARKET PLANNING. Allyn & Bacon, 1990.
Lua MLA (8ú heag.)Roger A. Kerin, Vijay Mahafan and P. Rajan Varadarajan. CONTEMPORARY PERSPECTIVES ON STRATEGIC MARKET PLANNING. Allyn & Bacon, 1990.
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