MORGAN DAVID L. (1997). FOCUS GROUPS AS QUALITATIVE RESEARCH. SAGE PUBLICATIONS.
Chicago (17e ed.) BronvermeldingMORGAN DAVID L. FOCUS GROUPS AS QUALITATIVE RESEARCH. NEW DELHI: SAGE PUBLICATIONS, 1997.
MLA (9e ed.) BronvermeldingMORGAN DAVID L. FOCUS GROUPS AS QUALITATIVE RESEARCH. SAGE PUBLICATIONS, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.