@book{130905,
	author = {Trefil, James,},
	title = {Cassell's laws of nature /},
	publisher = {Cassell,},
	year = {2002.},
	address = {London :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/orion051/2004396886.html}
}