Dyfyniad APA

Newsome, L. R. (1967). A perceptual factor that could contribute to road accidents. Road Research Laboratory.

Dyfyniad Arddull Chicago

Newsome, L. R. A Perceptual Factor That Could Contribute to Road Accidents. Crowthorne: Road Research Laboratory, 1967.

Dyfyniad MLA

Newsome, L. R. A Perceptual Factor That Could Contribute to Road Accidents. Road Research Laboratory, 1967.

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