Alling Norman L. <br/><br/>
Foundations of the Theory of Klein Surfaces 
/ by Norman L.Alling 
 - New York  Springer-Verlag  1971 
 - 117p. 
<br/><br/><label>ISBN: </label>3540055770 
<br/><br/><label>Dewey Class. No.: </label>513.85  / ALL/F