Man in his working environment    A worker's education mannual 

 - Geneva  ILO         1979 
 - "xii, 142p."  cm. 
 - International Labour Organization .
<br/><br/><label>Standard No.: </label>54111 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor Economics
<br/><br/><label>Dewey Class. No.: </label>"X:9:(G:5), L9/UN"