@book{8257,
	author = {Selvin, S.},
	title = {Statistical analysis of epidemiologic data /},
	publisher = {Oxford University Press,},
	year = {1996.},
	address = {New York :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0603/95014012-d.html}
}