Kelley, E. J. (1972). Marketing planning and competitve strategy. Prentice Hall, Inc.
Čikaški stil citiranjaKelley, Eugene J. Marketing Planning and Competitve Strategy. New Jersey: Prentice Hall, Inc, 1972.
MLA način citiranjaKelley, Eugene J. Marketing Planning and Competitve Strategy. Prentice Hall, Inc, 1972.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.