APA
Aaker D. A., Day G. S. & Kumar V. (2007). Marketing research. Hoboken, NJ: Wiley.
Chicago
Aaker David A, Day George S and Kumar V. 2007. Marketing research. Hoboken, NJ: Wiley.
Harvard
Aaker D. A., Day G. S. and Kumar V. (2007). Marketing research. Hoboken, NJ: Wiley.
MLA
Aaker David A, Day George S and Kumar V. Marketing research. Hoboken, NJ: Wiley. 2007.