Ryan,Patric J <br/><br/>
Euclidean and non-euclidean geometry  an analytic approach. 
J Ryan 
 - Cambridge   CUP  1986 
<br/><br/><label>ISBN: </label>9780521276351 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry.
<br/><br/><label>LC Class. No.: </label>QA 445 .R93