by Robert W. Shoemaker, Kenneth G. Hardy and Herbert F. MacKenzie

Marketing Science Institute c1989 Report / Marketing Science Institute no. 89-102

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by Allan J. Magrath and Kenneth G. Hardy

Marketing Science Institute c1988 Report / Marketing Science Institute no. 88-101

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Kenneth G. Hardy, Allan J. Magrath

Scott, Foresman c1988

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[edited by] Kenneth G. Hardy, Michael R. Pearce, Adrian B. Ryans

Allyn and Bacon c1985 2nd ed

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