Não informado. (2004). Basin News. Building Advisory Service and Information Network.
Chicago-referens (17:e uppl.)Não informado. Basin News. St. Gallen, Suíça: Building Advisory Service and Information Network, 2004.
MLA-referens (8:e uppl.)Não informado. Basin News. Building Advisory Service and Information Network, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.