Publications (3)
- (1922); BGS - Mineral Resources of GB (c1920s) Vol XX - Lead and Zinc: Cardiganshire & West Montogmeryshire; 242 pages
- Hughes, Simon J.S. (1987); British Mining Memoirs No. 34 - George Greem Engineer & Entrepreneur, 1824-1895; 14 pages
- Liscombe & Co (1880); Mines of Cardiganshire, Montgomereyshire & Shropshire; 52 pages
