Alexandrov, P S <br/><br/>
Combinatoral topology, Vol.1,2&3 

 -  Dover Publications, Inc., New Yor 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Topology; Mathematics
<br/><br/><label>Dewey Class. No.: </label>PG 514  ALE-C.1