Lewis, Ralph F. <br/><br/>
Planning and control for protif / 
Ralph F. Lewis. 
 - UK and Commonwealth Edition. 
 - London :  Heinemann,  1974. 
 - 208 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management.<br/>Business.
<br/><br/><label>LC Class. No.: </label>HD31  / .L42