Boehm, Richard G., et.al.,  c2002. <br/><br/>
Making a Difference :  Harcourt Brace Social Studies / 
Boehm, Richard G., et.al. 
 - USA :  Harcourt, Inc,  c2002. 
 - 286p. :  illus. ;  25.4 cm. 
<br/><br/><label>ISBN: </label>0-15-309784-1