@book{90375,
	author = {Valentino, Benjamin A.},
	title = {Final solutions  mass killing and genocide in the twentieth century},
	publisher = {Cornell University Press},
	year = {c2004},
	series = {Cornell studies in security affairs},
	address = {Ithaca (Nueva York, Estados Unidos)},
	url = {http://www.loc.gov/catdir/toc/ecip048/2003019941.html}
}