Marketing research 
McDaniel, Carl Jr. 
 - Eleventh Edition. 
 -  John Wiley & Sons Inc.  2019 
 - xvi, 596 pages 
978-1-11958650-0
Marketing research.
GS 658.83 M1341 2019
                        978-1-11958650-0
Marketing research.
GS 658.83 M1341 2019