@book{40740,
	author = {Giordana, C. A.},
	title = {Estudio de dos muestras de azufre del establecimiento azufrero de Salta.},
	publisher = {IDGYM,},
	year = {abr, 1971.},
	series = {Informe Inédito},
	address = {Jujuy :}
}