Ashton, D.N. <br/><br/>
Young Workers/ 
D.N. Ashton and David Field 
 - London:  Hutchinson & Co (publishers) Limited,  C1976. 
 - 192p.:  ill.; 
<br/><br/> includes references and index 
<br/><br/><label>ISBN: </label>301.55 
<br/><br/><label>Dewey Class. No.: </label>301.55