"Morton, Herberte. Ed." <br/><br/>
Monthly Labour Review 

 - U.S.  United states department of labour     1973 
 - 109p.  cm. 
<br/><br/><label>Standard No.: </label>169335 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X:9m73, N73, L3.96-7"