Não informado. (1995). Journal of Infrastructure Systems. American Society of Civil Engineers.
Chicago-referens (17:e uppl.)Não informado. Journal of Infrastructure Systems. New York: American Society of Civil Engineers, 1995.
MLA-referens (8:e uppl.)Não informado. Journal of Infrastructure Systems. American Society of Civil Engineers, 1995.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.