Dyfyniad APA

(1985). Highway Capacity Manual Special Report 209. National Research Council.

Dyfyniad Arddull Chicago

Highway Capacity Manual Special Report 209. National Research Council, 1985.

Dyfyniad MLA

Highway Capacity Manual Special Report 209. National Research Council, 1985.

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