APA

Aaker D., Kumar V. & Day J. (2000). Marketing research. New York: John Wiley & Sons.

Chicago

Aaker D, Kumar V and Day J. 2000. Marketing research. New York: John Wiley & Sons.

Harvard

Aaker D., Kumar V. and Day J. (2000). Marketing research. New York: John Wiley & Sons.

MLA

Aaker D, Kumar V and Day J. Marketing research. New York: John Wiley & Sons. 2000.