@book{36705,
	author = {Polya, George. and Bowden, Leon. and ebrary, Inc.},
	title = {Mathematical methods in science},
	publisher = {Mathematical Association of America,},
	year = {1977.},
	series = {Anneli Lax New Mathematical Library ;},
	address = {Washington, DC :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10729367}
}