@book{40643,
	author = {Chomnales, R.},
	title = {Estudio microscópico de cortes pulidos y transarentes de Mina San Martín, dpto. Iruya, pcia. de Salta.},
	publisher = {IDGYM,},
	year = {oct, 1980.},
	series = {Informe Inédito},
	address = {Jujuy :}
}