@book{16401,
	author = {Niggli, Paul},
	title = {Rocks and mineral deposits.},
	publisher = {Freeman and Company,},
	year = {1954.},
	series = {A Series of Geology Texts},
	address = {San Francisco :},
	note = {ING.7109 Ej.1 en Sala de Geociencias.}
}