Wentz, W. B. (1972). Marketing research: Management and methods. Happer & Row.
Chicago ZitierstilWentz, Walter B. Marketing Research: Management and Methods. New York: Happer & Row, 1972.
MLA ZitierstilWentz, Walter B. Marketing Research: Management and Methods. Happer & Row, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.