Wallenstein Gerd D. <br/><br/>
Concept and practice of product planning 
Wallenstein Gerd D. 
 - New York  American Management Association U. S. A.      1968 
 - 127p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Production Management
<br/><br/><label>Dewey Class. No.: </label>X:89A, K8