Monthly labor review . 

 - United  states US Deptt. of labor .    1955 
 - 756  cm. 
<br/><br/><label>Standard No.: </label>154895 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X : 9m . 73 . N55, J5 . 78 (1)"