SEVIN , Charles H. <br/><br/>
Marketing productivity analysis.// 
H Charles , SEVIN. 
 - New York  McGraw -Hill,  1965 
 - xiii , 137p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing
<br/><br/><label>Dewey Class. No.: </label>658.8 SEM