Não informado. (2004). Qualitative Market Research. MCB University Press.
Chicago (17e ed.) BronvermeldingNão informado. Qualitative Market Research. Bradford, Inglaterra: MCB University Press, 2004.
MLA (8e ed.) BronvermeldingNão informado. Qualitative Market Research. MCB University Press, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.