Yaglom, I.M ed. <br/><br/>
A simple non-euclidean geometry and its physical basis / 
Ed. by I.M Yaglom. 
 - New York:  Springer-Verlag;  1979. 
 - xviii, 307p. 
<br/><br/><label>Subjects--Index Terms: </label>Geometry. 
<br/><br/><label>Universal Decimal Class. No.: </label>514.13  / YAG