Monthly labor Reviews 

 - Washington  United states        1977 
 - various pages  cm. 
<br/><br/><label>Standard No.: </label>154693 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X:9m .7361 .N77, L7.100 (1)"