Deza, Michel <br/><br/>
Geometry of Chemical Graphs  Polycycles and Two-faced Maps 
by Michel Deza and Mathieu Dutor Sikric 
 - Cambridge  Cambridge University Press  2008 
 - ix,306p 
 - Encyclopedia of mathematics and its Applications No.119 .
<br/><br/><label>ISBN: </label>9780521873079 
<br/><br/><label>Dewey Class. No.: </label>547.12015115  / P08