Dyfyniad APA

National Cooperative Highway Research Program & National Research Council (U.S.). Transportation Research Board. (1982). Continuing project to synthesize information on highway problems. Transportation Research Board.

Dyfyniad Arddull Chicago

National Cooperative Highway Research Program and National Research Council (U.S.). Transportation Research Board. Continuing Project to Synthesize Information on Highway Problems. Washington, D.C: Transportation Research Board, 1982.

Dyfyniad MLA

National Cooperative Highway Research Program and National Research Council (U.S.). Transportation Research Board. Continuing Project to Synthesize Information on Highway Problems. Transportation Research Board, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.