@book{40537,
	author = {Chomnales, R.},
	title = {Estudio microscópico de las vetas de Minas Esperanza, La Rosa y El Porvenir, dpto. La Poma, Salta.},
	publisher = {IDGYM,},
	year = {set, 1966.},
	series = {Informe Inédito},
	address = {Jujuy :}
}