@book{40813,
	author = {Rayces, E. C.},
	title = {Estado de las labores de explotación de Mina Chorrillo, dpto. Tumbaya.},
	publisher = {IDGYM,},
	year = {jun, 1966.},
	series = {Informe Inédito},
	address = {Jujuy :}
}