@book{40822,
	author = {Rosco, J.},
	title = {Estudio preliminar de un afloramiento de baritina en la Quebrada de Chanagua, serranía del Chañi, dpto. capital.},
	publisher = {IDGYM,},
	year = {jun, 1976.},
	series = {Informe inédito},
	address = {Jujuy :}
}