Richards,  <br/><br/>
Introduction To Atomic Physic 

 - Abad  Journal of the Mathematical Association  1900 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural Science & mathematics--Modern physicsGeneralia--Physics
<br/><br/><label>Dewey Class. No.: </label>539  / BAR-I