@book{7775,
	author = {Vezzetti, Hugo.},
	title = {Pasado y presente :},
	publisher = {Siglo XXI Editores,},
	year = {2002.},
	series = {Sociología y Política},
	address = {Buenos Aires :},
	url = {http://www.loc.gov/catdir/enhancements/fy0905/2003400128-d.html}
}