Harder, Theordor <br/><br/>
Introduction to Mathematical Models in Markets and Opinion Research 

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 - ix, 194 p.   
<br/><br/>  Bibliog. p. 193 - 194 
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<br/><br/><label>Subjects--Index Terms: </label>Markets 
<br/><br/><label>Dewey Class. No.: </label>380.13:517