Não informado. (1957). Proceedings of the Institution of Civil Engineers. Institution of Civil Engineers.
Chicago-referens (17:e uppl.)Não informado. Proceedings of the Institution of Civil Engineers. London: Institution of Civil Engineers, 1957.
MLA-referens (8:e uppl.)Não informado. Proceedings of the Institution of Civil Engineers. Institution of Civil Engineers, 1957.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.