@book{71816,
	author = {Halm, George N. and Garcia de Diego, Luis},
	title = {Sistemas Económicos},
	publisher = {Rialp},
	year = {1964},
	series = {Libros de Economía / Javier Irastorza},
	address = {Madrid (España)},
	note = {Donación Dr. Álvaro Daza Roa.}
}