APA

Aaker D. A., Kumar V. & Day G. S. (2003). Marketing research. New York: John Wiley & Sons.

Chicago

Aaker David A, Kumar V and Day George S. 2003. Marketing research. New York: John Wiley & Sons.

Harvard

Aaker D. A., Kumar V. and Day G. S. (2003). Marketing research. New York: John Wiley & Sons.

MLA

Aaker David A, Kumar V and Day George S. Marketing research. New York: John Wiley & Sons. 2003.