@book{128314,
	author = {Winsor, Mary P. and ebrary, Inc.},
	title = {Reading the shape of nature},
	publisher = {University of Chicago Press,},
	year = {1991.},
	series = {Science and its conceptual foundations},
	address = {Chicago :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10464676}
}