@book{52576,
	author = {Williams, Brooke.},
	title = {Halflives :},
	publisher = {Shearwater Books,},
	year = {c1999.},
	address = {Washington, D.C. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0666/99033863-d.html}
}