National Research Council (U.S.). Highway Research Board. (1973). Environmental considerations in planning, design, and construction. Highway Research Board.
Chicago-referens (17:e uppl.)National Research Council (U.S.). Highway Research Board. Environmental Considerations in Planning, Design, and Construction. Washington: Highway Research Board, 1973.
MLA-referens (9:e uppl.)National Research Council (U.S.). Highway Research Board. Environmental Considerations in Planning, Design, and Construction. Highway Research Board, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.