@book{16391,
	author = {Billings, Marland P.},
	title = {Geología estructural.},
	publisher = {Eudeba,},
	year = {1963.},
	series = {Manuales de Eudeba/Ciencias Naturales},
	address = {Buenos Aires :},
	note = {ING.7089 Ej.1 en Sala de Geociencias.}
}