@book{8331,
	author = {Cederberg, Judith N.},
	title = {A course in modern geometries /},
	publisher = {Springer,},
	year = {1989..},
	address = {New York :},
	edition = {Corr. 3rd print.},
	url = {http://www.loc.gov/catdir/enhancements/fy0815/95232541-d.html}
}