Gregerman, Ira B. <br/><br/>
Knowledge worker productivity / 
by Ira B. Gregerman. 
 - New York, N.Y. :  AMACOM,  1981. 
 - 55 p. 
<br/><br/><label>ISBN: </label>0814422705 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor productivity.<br/>Professional employees.