@book{48661,
	author = {Peñaherrera Araque de Costales, Piedad, 1929-1994 and  Costales Samaniego, Alfredo, 1925-2016},
	title = {Yavirac, Cerro Gordo o Panecillo},
	year = {ago. 1981},
	address = {Quito},
	note = {Incluye notas}
}