@book{40769,
	author = {Giordana, C. A.},
	title = {Estudio de concentración de un mineral de Antimonio sulfurado del yacimiento Coiruro de Tumbaya.},
	publisher = {IDGYM,},
	year = {jul, 1976.},
	series = {Informe Inédito},
	address = {Jujuy :}
}