Del Grande, J.J. <br/><br/>
Mathematics 12 : teachers commetary 
J.J. Del Grande and J.C. Egsgard 
 - 2nd ed. 
 - Totonto  Gage Educational Publishing Ltd.  1970 
 - 104p. ; 23cm. 
<br/><br/><label>Dewey Class. No.: </label>510.7  / GRA