@book{5336,
	author = {Fulton, William.},
	title = {Algebraic topology :},
	publisher = {Springer,},
	year = {1997.},
	series = {Graduate texts in mathematics.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0387943277/chopaconline-20}
}