Water, enough for everyone? / 
Martha S Scherpelz; Judith N Thelen. 
 - Columbus, Ohio :  Zaner-Bloser,  1992. 
 - 24 p. :  ill. ;  20 cm. 
 - Breakthroughs, strategies for thinking. .
<br/><br/><label>ISBN: </label>0-88309-991-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comprehensive school