Bolyai, Janos. <br/><br/>
Appendix  the theory of space 
by Janos Bolyai, ed. by Fereno Karteszi. 
 - Amsterdam  North Holland  1987 
 - 238p. 
 - North-Holland mathematics studies 138 .
<br/><br/><label>ISBN: </label>0444865284 
<br/><br/><label>Dewey Class. No.: </label>516.9  / N871