Dyfyniad APA

National Research Council (U.S.). Transportation Research Board. (1992). Pavement design and rehabilitation. Transportation Research Board, National Research Council National Academy Press.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Transportation Research Board. Pavement Design and Rehabilitation. Washington, D.C: Transportation Research Board, National Research Council National Academy Press, 1992.

Dyfyniad MLA

National Research Council (U.S.). Transportation Research Board. Pavement Design and Rehabilitation. Transportation Research Board, National Research Council National Academy Press, 1992.

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