Não informado. (1901). Journal and Proceedings of the Institution of Sewage Purification. Institute of Sewage and Purification.
Chicago-referens (17:e uppl.)Não informado. Journal and Proceedings of the Institution of Sewage Purification. London: Institute of Sewage and Purification, 1901.
MLA-referens (8:e uppl.)Não informado. Journal and Proceedings of the Institution of Sewage Purification. Institute of Sewage and Purification, 1901.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.