@book{ 0-1147833591, title = {Lehrbuch der Mineralogie für Studirende und zum Selbstunterricht}, author = {Klockmann, Friedrich}, address = {Stuttgart}, publisher = {Enke}, year = {1892}, language = {German}, url = {https://katalog.ub.tu-freiberg.de/Record/0-1147833591} }