BONOLA, Roberto <br/><br/>
Non-Euclidean geometry:   a critical and historical study of its developments / 
by Roberto Bonola 
 - London  Constable  1955 
 - xii, 50 p.y 
<br/><br/> Includes appendix & bibliogrphy. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Euclidean geometry
<br/><br/><label>Dewey Class. No.: </label>516.9  / BON