Dyfyniad APA

(2004). Handbook of transportation engineering. McGraw-Hill.

Dyfyniad Arddull Chicago

Handbook of Transportation Engineering. McGraw-Hill, 2004.

Dyfyniad MLA

Handbook of Transportation Engineering. McGraw-Hill, 2004.

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