@book{356887,
	author = {Stefano Gasparri  and A. Di Salvo},
	title = {Fonti per la storia medievale},
	publisher = {Sansoni},
	year = {1992},
	series = {Biblioteca universale S.},
	address = {Firenze},
	edition = {1a ed. (v)},
	note = {Storia medievale}
}