Maths links./ 
Ray Allan... [and etc]. 
 - 1th edi. 
 - Oxford:  Oxford University Press,  2008. 
 - 274 p.;  25 cm. 
<br/><br/><label>ISBN: </label>9780199152803 
<br/><br/><label>Dewey Class. No.: </label>372.7 MAT