@book{2582,
	author = {Cunningham, F. Gary.},
	title = {Williams obstetrics /},
	publisher = {McGraw-Hill Professional,},
	year = {c2005.},
	address = {New York :},
	edition = {22nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0619/2004061105-b.html}
}