@book{263726,
	author = {Mason, Thomas J. and McKay, Frank W. and National Cancer Institute (U.S.)},
	title = {U.S. cancer mortality by county, 1950-69 [with list of references] /},
	year = {1974]},
	address = {[Washington, D.C.,},
	note = {DHEW publication (NIH) 74-615.}
}