00717nam0-2200265---450-99001004804040332120160302091138.0001004804FED01001004804(Aleph)001004804FED0100100480420160302d1929----km-y0itay50------baengGBa-------001yy<<An >>introduction to the study of ore depositsby Frederick Henry HatchLondonAllen and Unwin1929107 p.ill.20 cmHatch,Frederick HenryITUNINARICAUNIMARCBK990010048040403321M 9/173698DINGEDINGEUNINA