Rao,  I, <br/><br/>
Learning  Science  Part -2. The  World  of  Physics  and  Energy 

 - 1st /   2007. 
 - Delhi:  National  Book  Trust,  2007. 
 - 148p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Physics, Physics. 
<br/><br/><label>Dewey Class. No.: </label>530