Harder, Theodor <br/><br/>
Introduction to mathematical models in market and opinion research with practical applications, computing procedures and estimates of computing requirements/ 
Theodor Harder 
 - The Hague:  Mouton  c1969 
 - 194 p.;  21 cm. 
<br/><br/>Bibliography: p. 193-194 
<br/><br/><label>ISBN: </label> $ 85.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing research--Mathematical models<br/>Public opinion polls
<br/><br/><label>Dewey Class. No.: </label>658.83