@book{90897,
	author = {Klem, Margaret Coyne,},
	title = {Prepayment medical care organizations},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1945.},
	series = {[United States] Social security board. Bureau of research and statistics. Bureau memorandum},
	address = {Washington,},
	edition = {3d ed. ...}
}