Wentz, W. B. (1972). Marketing research: Management and methods. Happer & Row.
Chicago Style citaatWentz, Walter B. Marketing Research: Management and Methods. New York: Happer & Row, 1972.
MLA citatieWentz, Walter B. Marketing Research: Management and Methods. Happer & Row, 1972.
Let op: Deze citaties zijn niet altijd 100% accuraat.