Piper, C B <br/><br/>
Introduction to arithmetic / 
Piper, C B 
 -  George Newness Ltd.,  1968 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic; Mathematics
<br/><br/><label>Dewey Class. No.: </label>513 PIP-I