@book{44756,
	author = {Correns, Carl W. and Zemann, J.},
	title = {Introduction to mineralogy, crystallography and petrology.},
	publisher = {Springer},
	year = {1969.},
	address = {Berlin},
	edition = {2d ed.},
	note = {Translation of Einführung in die Mineralogie, Kristallographie und Petrologie.}
}