Maintaining the product portfolio :  the commercial development concept. 

 - 87 pages ;  23 cm 
 - AMA management report ;  no. 42. .
<br/><br/> "Based mainly on presentations at 1959-60 conferences of AMA's Research and Development Division." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing<br/>New products
<br/><br/><label>LC Class. No.: </label>HF5415  / .A44 1960