@book{217040,
	author = {Nagel, Thomas. and ebrary, Inc.},
	title = {Concealment and exposure},
	publisher = {Oxford University Press,},
	year = {2002.},
	address = {New York ;},
	note = {Originally published: 2002.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10085400}
}