Thomas, Jean. <br/><br/>
World problems in education :   a brief analytical survey /  
J. T homas. 
 - Paris :   UNESCO ,   1975. 
 - 166p. ;    21 cm. 
 - UNESCO. Studies and surveys in comparative education ;   no. 4. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational surveys.--------<br/>Education.--------