Kelley, E. J. (1965). Marketing: Strategy and functions. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Kelley, Eugene J. Marketing: Strategy and Functions. Englewood Cliffs: Prentice-Hall, 1965.
Lua MLA (9ú heag.)Kelley, Eugene J. Marketing: Strategy and Functions. Prentice-Hall, 1965.
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