@book{21224,
	author = {Michaelson, Karen L.},
	title = {Childbirth in America :},
	publisher = {Bergin & Garvey Publishers,},
	year = {1988.},
	address = {South Hadley, Mass. :},
	note = {Includes index.},
	url = {http://www.archive.org/details/childbirthinamer00michrich}
}