Pal, Yash <br/><br/>
Discovered questions/ 
Yash Pal and Rahul Pal 
 - New Delhi :  National Council of Educational Research and Training,  2006 
 - xxix, 142 , xlii p. :  col. ill.;  27 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>8174506152(pbk)  Rs. 65.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discoveries in science--Study and teaching
<br/><br/><label>Dewey Class. No.: </label>509.07