CUNDIFF, E. W. (1985). Fundamentals Of Modern Marketing Edward W. Cindiff, Richard R. Still. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)CUNDIFF, Edward W. Fundamentals Of Modern Marketing Edward W. Cindiff, Richard R. Still. Prentice-Hall, 1985.
Lua MLA (8ú heag.)CUNDIFF, Edward W. Fundamentals Of Modern Marketing Edward W. Cindiff, Richard R. Still. Prentice-Hall, 1985.
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