Leeflang, P. S. H. <br/><br/>
Mathematical models in marketing: a survey, the stage of development, some extensions and applications / 
P. S. H. Leeflang 
 - Leiden  Stenfert Kroese  1974 
 - vii, 213p  ill;  23cm 
<br/><br/>Includes Bibliographical references and index 
<br/><br/><label>ISBN: </label>9020704362 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing
<br/><br/><label>Dewey Class. No.: </label>350.7232095475  / LEE