Merttens, Ruth,  <br/><br/>
Numbers time and money 

 - 23 pages :   colour illustrations ;   24 cm 
<br/><br/><label>ISBN: </label>1852700033 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aritmetics - Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>513.2076