Mines Department annual reports for 1912. Part IV, Geological Survey South Africa. Department of Mines Published: 1913 Total Pages: Get eBook
Annual Reports of the Secretary for Mines and Industries and the Government Mining Engineer ... South Africa. Dept. of Mines and Industries Published: 1913 Total Pages: 360 Get eBook
Annual Reports of the Secretary for Mines and Industries and the Government Mining Engineer South Africa. Department of Mines and Industries Published: 1913 Total Pages: 326 Get eBook
Mines Department annual reports South Africa. Department of Mines Published: 1911 Total Pages: Get eBook
Report of the Geological Survey for the Year ... Geological Survey (South Africa) Published: 1912 Total Pages: 498 Get eBook
Report of the Advisory Board of Industry and Science ... South Africa. Advisory board of industry and science Published: 1920 Total Pages: 62 Get eBook
Abstracts of the Proceedings of the Geological Society of London Geological Society of London Published: 1909 Total Pages: 762 Get eBook
