@book{7441,
	author = {Ahlfeld, Federico and Muñoz Reyes, Jorge},
	title = {Los minerales de Bolivia.},
	publisher = {Litografías e Imprentas Unidas,},
	year = {1943.},
	address = {La Paz :},
	edition = {2a ed.},
	note = {p.261-267.}
}