APA استشهاد

Wentz, W. B. (1975). Cases in marketing research. Happer & Row.

استشهاد بنمط شيكاغو

Wentz, Walter B. Cases in Marketing Research. New York: Happer & Row, 1975.

MLA استشهاد

Wentz, Walter B. Cases in Marketing Research. Happer & Row, 1975.