National Council of Educational Research and Training <br/><br/>
Geometry teaching guide book II, class vi/ 

 - New Delhi:  NCERT,  1970 
 - 58 
<br/><br/><label>Source: </label> 13701-08-2003 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry-Study and Teaching