@book{172472,
	author = {Stern, Paul C., and ebrary, Inc.},
	title = {Understanding risk},
	publisher = {National Academy Press,},
	year = {1996.},
	address = {Washington, D.C. :},
	note = {"Committee on Risk Characterization, Commission on Behavioral and Social Sciences and Education, National Research Council."},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10057067}
}