Carkhuff, Robert R., <br/><br/>
Sources of human productivity 
Robert R. Carkhuff. 
 - Amherst  Human Resource Development Press  1983. 
 - 248pages :    illustration,    29cm. 
<br/><br/><label>ISBN: </label>0914234757 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management<br/>Labor productivity