Ryan, Patrick J. <br/><br/>
Euclideon and noneuclidean geometry: An analytic approach 

 - Cambridge  Cambridge University  1986 
 - 215p. 
<br/><br/><label>ISBN: </label> RS 144.56 
<br/><br/><label>Source: </label> RS 144.56 
<br/><br/><label>Dewey Class. No.: </label>516 RYA