@book{40590,
	author = {Chomnales, R.},
	title = {Estudio microscópico de cortes pulidos procedentes de Mina Washington, dpto. de Yavi.},
	publisher = {IDGYM,},
	year = {ago, 1971.},
	series = {Informe Inédito},
	address = {Jujuy :}
}