@book{40548,
	author = {Chomnales, R.},
	title = {Estudio microscópico de muestras de minerales de cobre, Mina Eureka, dpto. Santa Catalina.},
	publisher = {IDGYM,},
	year = {jul, 1967.},
	series = {Informe Inédito},
	address = {Jujuy :}
}