Wallace, Andrew H <br/><br/>
Algebraic topology : homology and cohomology 

 - Dover ed 
 - Mineola, NY:  Dover Publications,  2007 
 - ix, 272 p. : ill. ; 22 cm 
<br/><br/><label>ISBN: </label>9780486462394 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>514.2 WAL