Hill, John W. <br/><br/>
Chemistry for changing times / 
John W. Hill, Cynthia S. Hill 
 - fifth edition 
<br/><br/> College of Education  Bachelor of Elementary Education 
<br/><br/><label>ISBN: </label>0-02-355010-4 
<br/><br/><label>Dewey Class. No.: </label>540 H55