Abraham Herbert J. <br/><br/>
World problems in the classroom 

 - Paris, France  United Nations Educational Scientific and Cultural Organization  1973 
 - 223p. 
<br/><br/><label>ISBN: </label>92-3-101048-4 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>UNESCO