Double-shift schooling:  design and operation for cost-effectiveness 
/by Mark Bray 
 - 3rd ed. 
 - Paris:  UNESCO,  International Institute for Educational planning,  2008. 
 - pages :  ill. ;  22 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>Dewey Class. No.: </label>371.208  / BRA