National Research Council (U.S.). Transportation Research Board. (1992). Bridge, culvert, and tunnel research. National Academy Press.
Chicago-referens (17:e uppl.)National Research Council (U.S.). Transportation Research Board. Bridge, Culvert, and Tunnel Research. Washington, D.C: National Academy Press, 1992.
MLA-referens (9:e uppl.)National Research Council (U.S.). Transportation Research Board. Bridge, Culvert, and Tunnel Research. National Academy Press, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.