Evans, K. <br/><br/>
Subtraction 

 - New York  Mcclanahan Book Ltd.  1994 
<br/><br/><label>ISBN: </label>1-878624-58-x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Primary Education
<br/><br/><label>Dewey Class. No.: </label>372.7  / EVA