@book{105964,
	author = {Puiggrós, Rodolfo},
	title = {El feudalismo medieval.},
	publisher = {Centro Editor de América Latina},
	year = {[1972]},
	series = {Biblioteca fundamental del hombre moderno},
	address = {[Buenos Aires]},
	note = {First ed., 1965 has title: Génesis y desarrollo del feudalismo.}
}