Promotionscan, a system for improving promotion productivity for retailers and manufacturers using scanner data and household using panael data / by Leonard M. Lodish.
- Philadelphia, Pa. : Wharton School, University of Pennsylvania, Marketing Dept., 
- Working paper (Wharton School. Marketing Dept.) ; no. 89-007R.
Working paper / Wharton School, University of Pennsylvania, Marketing Dept. ; no. 89-007R
36, 3 leaves : ill. ; 28 cm.
- Includes bibliographical references.
- Wharton School. Marketing Dept.
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