BLANKENSHIP. (1993). State Of The Art Marketing Research. NTC.
Chicago Style aipamenaBLANKENSHIP. State Of The Art Marketing Research. NTC, 1993.
MLA aipamenaBLANKENSHIP. State Of The Art Marketing Research. NTC, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.