@book{20583,
	author = {Andrews S., E. Wyllys. and Andrews S., E. Wyllys.},
	title = {Flautas precolombina procedentes de Quelapa /},
	publisher = {Ministerio de Educaicón,},
	year = {1972},
	series = {Antropología ;},
	address = {El Salvador,}
}