Kendrick, John W. <br/><br/>
Productivity trends in the United States 
by John W. Kendrick, assisted by Maude R. Pech. A study by the National Bureau of Economic Research, New York. 
 - Princeton [N.J.]  Princeton University Press  1961. 
 - 630 p.  illus. 
 - National Bureau of Economic Research. General series, no. 88 .
<br/><br/> 920724 
<br/><br/><label>LCCN: </label>61007405 /L 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor productivity--United States.
<br/><br/><label>LC Class. No.: </label>HC110.L3  / K4 
<br/><br/><label>Dewey Class. No.: </label>338.01973