@book{222883,
	author = {Pickett, George E. and Hanlon, John J.},
	title = {Public health},
	publisher = {Times Mirror/Mosby College Pub.},
	year = {1990.},
	address = {St. Louis},
	edition = {9th ed.},
	note = {Hanlon's name appears first on earlier ed.},
	url = {http://www.loc.gov/catdir/description/mh022/89012721.html}
}