@book{13372,
	author = {Mansfield, M.},
	title = {Introduction to topology /},
	publisher = {Krieger Pub Co,},
	year = {1972.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0882750429/chopaconline-20}
}