000			00405nam a2200145Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a539.6 _bHEC-E
100			_aHecth [dr S],
245		0	_aExplaining The Atom Tr By As N
260			_bEducational Supplies Depot. _aPalghat _c1961
300			_a119p.
630			_xGeneral Stack
650			_aScience _vPhysicsModern Physics _xGeneralia
942			_cBOOK
999			_c21724 _d21724