Rue,W. L.|Byars, L. L. <br/><br/>
Supervision  Keylink to productivity 

 - 6th 
 - Boston  McGraw-Hill  1999 
<br/><br/><label>ISBN: </label>0-256-27173-9 
<br/><br/><label>LC Class. No.: </label>HD 490.R83 1999