@book{40553,
	author = {Chomnales, R.},
	title = {Estudio microscópico de minerales de cobre procedentes de mina Olga en el dpto. Yavi.},
	publisher = {IDGYM,},
	year = {ago, 1967.},
	series = {Informe Inédito},
	address = {Jujuy :}
}