J. G. Gamble
- Water-Supply in the Cape Colony. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 90, n. 1887-4 ( 1887). (1887):
- The Brighton Intercepting and Outfall Sewers. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 43, n. 1876-1 ( 1876). (1876):
- The Waterworks of Port Elizabeth, South Africa. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 74, n. 1883-4 ( 1883). (1883):