Lehmann, D. R., & Lehmann, D. R. (2002). Analysis for marketing planningDonald R. Lehmann, Russell S. Winer. McGraw-Hill.
Chicago Style (17th ed.) CitationLehmann, Donald R., i Donald R. Lehmann. Analysis for Marketing PlanningDonald R. Lehmann, Russell S. Winer. McGraw-Hill, 2002.
Cita MLALehmann, Donald R., i Donald R. Lehmann. Analysis for Marketing PlanningDonald R. Lehmann, Russell S. Winer. McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.