Leeflang P S H <br/><br/>
Mathematical models in marketing   A survey, the stage of development, some extensions and applications      

 -  1974 
<br/><br/><label>Standard No.: </label>2171 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X:51:(B), L4