@book{433,
	author = {Viro, O. I︠A︡.,},
	title = {Elementary topology :},
	publisher = {American Mathematical Society,},
	year = {c2008.},
	address = {Providence, R.I. :},
	url = {http://www.loc.gov/catdir/toc/fy1002/2008009303.html}
}