BLYTH, T.S & Robertson <br/><br/>
Algebra through Practise - 5 

 - 1 st 
 -  Cambridge university press  1985 
 - 101 P 
<br/><br/><label>ISBN: </label>0-521-27290-4 
<br/><br/><label>Dewey Class. No.: </label>512.0076