Übelacker, Erich <br/><br/>
Our Universe : within the boundaries of spacevand time 

 - New Delhi  Tessloff Sterling Publishers Pvt. Ltd.  2011 
 - 48 
<br/><br/><label>ISBN: </label>9789380152325 
<br/><br/><label>Dewey Class. No.: </label>CIR 520 Ub13 2011