MLA

Schoner, B, and K.P Uhl. Marketing Research; a Short Course for Professionals. London: John Wiley & sons, .

APA

Schoner, B., & Uhl, K. (.). Marketing research; a short course for professionals. London: John Wiley & sons.

Chicago

Schoner, B., and K.P Uhl. Marketing Research; a Short Course for Professionals. London: John Wiley & sons, ..