Zikmund, W. G. (2002). Exploring marketing research (8th ed.). Thomson south western.
Chicago Style citaatZikmund, William G. Exploring Marketing Research. 8th ed. Australia: Thomson south western, 2002.
MLA citatieZikmund, William G. Exploring Marketing Research. 8th ed. Thomson south western, 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.