Gaya APA
Aaker, David A. Day, George S.. (1990).
Marketing research 4th ed. (ed. 4).
Canada:
John Wiley & Sons, Inc..
Gaya Chicago
Aaker, David A. Day, George S..
Marketing research 4th ed..
ed. 4
Canada:
John Wiley & Sons, Inc.,
1990.
Text.
Gaya MLA
Aaker, David A. Day, George S..
Marketing research 4th ed..
ed. 4
Canada:
John Wiley & Sons, Inc.,
1990.
Text.
Gaya Turabian
Aaker, David A. Day, George S..
Marketing research 4th ed..
ed. 4
Canada:
John Wiley & Sons, Inc.,
1990.
Print.