World problems in the classroom  A teacher's guide to some united nations task.  by Abraham, J. 

 - Paris :  Unesco,  1973. 
 - 223p. 
<br/><br/><label>ISBN: </label>9231010484 
<br/><br/><label>Subjects--Topical Terms: </label>--School of Business and Education
<br/><br/><label>LC Class. No.: </label>JX1977  / .A624 1979