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- Introduction to Mathematical Models in Market and Opinion Research.Harder, Theodor

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£ 13.67 shipping - Introduction to Mathematical Models in Market and Opinion Research, With Practical Applications, Computing Procedures, and Estimates of Computing RequirementsHarder, T.
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£ 13.60 shipping - Introduction to Mathematical Models in Market and Opinion ResearchE.H. Friedlander P.H. Friedlander T. Harder

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£ 2.95 shipping - Introduction to Mathematical Models in Market and Opinion Research: With Practical Applications, Computing Procedures, and Estimates of Computing RequirementsHarder, Theodor
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