Não informado. (1995). Journal of the Chartered Institution of Water and Environmental Management. Lavenham Press.
Chicago-referens (17:e uppl.)Não informado. Journal of the Chartered Institution of Water and Environmental Management. London: Lavenham Press, 1995.
MLA-referens (8:e uppl.)Não informado. Journal of the Chartered Institution of Water and Environmental Management. Lavenham Press, 1995.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.