Monthly labor review . 

 - Washington  U.S . govt. printing office .    1972 
 - various pages  cm. 
<br/><br/><label>Standard No.: </label>154926 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X : 9m . 73 . N72, L2 . 95 (7-12)"