Silberstein, Ludwik . <br/><br/>
The Size of the Universe /  Textual Documents 
Ludwik Silberstein. 
 - 1st ed. / 
 - Oxford :  Oxford Universsity Press ,  1930. 
 - vi,215p. :  ill ;  19cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Universe G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>523.1  / Si 32 Si