Trends in output per man-hour, 1935-55, selected non-manufacturing industries. 

 - [Washington]  1956. 
 - 21 p.  tables.  27 cm. 
 - Its BLS report  no. 105 .
<br/><br/><label>LCCN: </label>l  56000134  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor productivity--United States.<br/>Industries--United States.
<br/><br/><label>LC Class. No.: </label>HD8051  / .A7876 no. 105