Snapper Ernst <br/><br/>
Metric affine geometry. 
Snapper Ernst; Troyer Robert J 
 -  1971 
<br/><br/><label>Standard No.: </label>21001 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B67: 25, L1