Dyfyniad APA

Wilkins, H. A., & Riley, B. S. (1982). The road grip of commercial vehicle tyres. Transport and Road Research Laboratory.

Dyfyniad Arddull Chicago

Wilkins, H. A., and B. S. Riley. The Road Grip of Commercial Vehicle Tyres. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1982.

Dyfyniad MLA

Wilkins, H. A., and B. S. Riley. The Road Grip of Commercial Vehicle Tyres. Transport and Road Research Laboratory, 1982.

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