"R. Merttens" <br/><br/>
Abacus Evolve Textbook 2 

 - UK  Ginn An imprint of Pearson Education Limited  2007 
 - 32 
<br/><br/><label>ISBN: </label>9780602575090 
<br/><br/><label>Dewey Class. No.: </label>510  / 1377