Russell, Bertrand <br/><br/>
The ABC of Relativity 

 - America :  Mentor Book,   1959. 
 - 144p.;  19cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mahinda Ranaweera Collection<br/>Premadasa Udagama Collection<br/>Physics
<br/><br/><label>Dewey Class. No.: </label>530.11  / RUS