MARIAMPOLSKI, H. (2001). Qualitative market Research: A Comprehensive Guide. SAGE.
Lua i Stíl Chicago (17ú heag.)MARIAMPOLSKI, HY. Qualitative Market Research: A Comprehensive Guide. SAGE, 2001.
Lua MLA (8ú heag.)MARIAMPOLSKI, HY. Qualitative Market Research: A Comprehensive Guide. SAGE, 2001.
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