Não informado. (1901). Journal and Proceedings of the Institution of Sewage Purification. Institute of Sewage and Purification.
Chicago-viite (17. p.)Não informado. Journal and Proceedings of the Institution of Sewage Purification. London: Institute of Sewage and Purification, 1901.
MLA-viite (8. p.)Não informado. Journal and Proceedings of the Institution of Sewage Purification. Institute of Sewage and Purification, 1901.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.