Hecth [dr S],  <br/><br/>
Explaining The Atom Tr By As N 

 - Palghat  Educational Supplies Depot.  1961 
 - 119p. 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Generalia--PhysicsModern Physics
<br/><br/><label>Dewey Class. No.: </label>539.6  / HEC-E