Stahl, Saul. <br/><br/>
A gateway to modern geometry :  the Poincaré half-plane / 
Saul Stahl. 
 - 2nd ed. 
 - Sudbury, Mass. :  Jones and Bartlett Publishers,  c2008. 
 - viii, 255 p. :  ill. ; 
<br/><br/> Rev. ed. of: Poincaré́́ half-plane. Boston : Jones and Bartlett Publishers, c1993. 
<br/><br/><label>ISBN: </label>9780763753818 0763753815 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Non-Euclidean.
<br/><br/><label>Universal Decimal Class. No.: </label>514.13  / STA