Matrices 1 : contemporary school mathematics 

 - London :  Edward Arnold,   1968. 
 - 80p.;  23cm 
<br/><br/><label>ISBN: </label>7131 1290 5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510.7  / MAT