Dyfyniad APA

Indian Roads Congress. Highway Research Board. Highway research record. IRC Highway Research Board.

Dyfyniad Arddull Chicago

Indian Roads Congress. Highway Research Board. Highway Research Record. New Delhi: IRC Highway Research Board.

Dyfyniad MLA

Indian Roads Congress. Highway Research Board. Highway Research Record. IRC Highway Research Board.

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