Dornyei, Zoltan <br/><br/>
Elementary mathematics: Selected topics and problem solving 

 - Moscow  Mir Publishers  1973 
 - 488p. 
<br/><br/><label>ISBN: </label> RS 80.00 
<br/><br/><label>Source: </label> RS 80.00 
<br/><br/><label>Dewey Class. No.: </label>510 DOR