Não informado. (1952). Proceedings of the Institution of Civil Engineers. Institution of Civil Engineers.
Citação do estilo Chicago (17ª ed.)Não informado. Proceedings of the Institution of Civil Engineers. London: Institution of Civil Engineers, 1952.
Citação MLA (8ª ed.)Não informado. Proceedings of the Institution of Civil Engineers. Institution of Civil Engineers, 1952.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.