@book{142064,
	author = {Walker, Geoffrey J. and Beltrán, Jordi (},
	title = {Política española y comercio colonial 1700-1789 / },
	publisher = {Ariel, },
	year = {[1979]},
	series = {Ariel historia ; },
	address = {Barcelona : },
	edition = {[1ª ed.].}
}