@book{16394,
	author = {Harker, Alfred},
	title = {Metamorphism a study of the transformations of rock-masses.},
	publisher = {Methuen,},
	year = {1939.},
	address = {Londres :},
	edition = {2a ed.},
	note = {ING.7104 Ej.1 en Sala de Geociencias.}
}