TY  - BOOK
ED  - Union of South Africa, Department of Mines 
TI  - Annual report including reports of the Government Mining Engineer and the Geological Survey for the year ended 31st December 1949
U1  - 100 SD:622.0968227 
PY  - 1950///
CY  - Pretoria
PB  - Government Printers
KW  - Pretoria
KW  - Mining Engineer
KW  - Geological Survey
ER  -