National Research Council (U.S.). Transportation Research Board. (1976). Inland waterway reports and issues: Transportation Research Board, Commission on Sociotechnical Systems, National Research Council. Washington: National Academy of Sciences.
Παραπομπή Chicago StyleNational Research Council (U.S.). Transportation Research Board. Inland Waterway Reports and Issues: Transportation Research Board, Commission On Sociotechnical Systems, National Research Council. Washington: National Academy of Sciences, 1976.
Παραπομπή MLANational Research Council (U.S.). Transportation Research Board. Inland Waterway Reports and Issues: Transportation Research Board, Commission On Sociotechnical Systems, National Research Council. Washington: National Academy of Sciences, 1976.