Dyfyniad APA

(2010). Journal of Transportation Engineering January-March 2010. ASCE.

Dyfyniad Arddull Chicago

Journal of Transportation Engineering January-March 2010. ASCE, 2010.

Dyfyniad MLA

Journal of Transportation Engineering January-March 2010. ASCE, 2010.

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