MCDANIEL CARL. (2004). MARKETING RESEARCH ESSENTIALS (WITH CD). JOHN WILEY & SONS.
Lua i Stíl Chicago (17ú heag.)MCDANIEL CARL. MARKETING RESEARCH ESSENTIALS (WITH CD). CHICHESTER: JOHN WILEY & SONS, 2004.
Lua MLA (9ú heag.)MCDANIEL CARL. MARKETING RESEARCH ESSENTIALS (WITH CD). JOHN WILEY & SONS, 2004.
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