Monthly labor review . 

 - United  states U.S deptt. of labor     1955 
 - 756  cm. 
<br/><br/><label>Standard No.: </label>155091 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X : 9m . 73 .N55, J5 . 78 (1)"