BAELK RUSSELLL W. (2006). HANDBOOK OF QUALITATIVE RESEARCH METHODS IN MARKETING. EDWARD ELGAR.
Lua i Stíl Chicago (17ú heag.)BAELK RUSSELLL W. HANDBOOK OF QUALITATIVE RESEARCH METHODS IN MARKETING. CHELTENHAM, U.K: EDWARD ELGAR, 2006.
Lua MLA (9ú heag.)BAELK RUSSELLL W. HANDBOOK OF QUALITATIVE RESEARCH METHODS IN MARKETING. EDWARD ELGAR, 2006.
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