Harritage, Raymond. <br/><br/>
Learning mathematics : book 4   

 - Middlesex :   Penguin Books,   1969. 
 - 659 ;  
<br/><br/><label>ISBN: </label>0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical Sciences
<br/><br/><label>Dewey Class. No.: </label>510  / HAR