G. M. Barr
- Improvement of the Entrance to Otago Harbour, New Zealand. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 110, n. 1892-4 ( 1892). (1892):
- Otago Upper Harbour Improvement Works, New Zealand. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 121, n. 1895-3 ( 1895). (1895):