Morgan, D. L. (1993). Successful focus groups: Advancing the state of the art. Sage.
Chicago Style (17th ed.) CitationMorgan, David L. Successful Focus Groups: Advancing the State of the Art. Newbury Park, California: Sage, 1993.
MLA (9th ed.) CitationMorgan, David L. Successful Focus Groups: Advancing the State of the Art. Sage, 1993.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.