TONGREN, H. N. (1992). Cases In Consumer Behavior Hale N. Tongren. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)TONGREN, Hale N. Cases In Consumer Behavior Hale N. Tongren. Prentice-Hall, 1992.
Lua MLA (8ú heag.)TONGREN, Hale N. Cases In Consumer Behavior Hale N. Tongren. Prentice-Hall, 1992.
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