@book{1942,
	author = {Perrow, Charles.},
	title = {Normal accidents :},
	publisher = {Princeton University Press,},
	year = {c1999.},
	series = {Princeton paperbacks,},
	address = {Princeton, N.J. :},
	note = {Originally published: New York : Basic Books, 1984.},
	url = {http://www.loc.gov/catdir/toc/prin032/99032990.html}
}