Dyfyniad APA

Watts, P. F., & Naysmith, A. (1980). Urban bus revenue collection: Current methods and directions of development. Transport and Road Research Laboratory.

Dyfyniad Arddull Chicago

Watts, P. F., and A. Naysmith. Urban Bus Revenue Collection: Current Methods and Directions of Development. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1980.

Dyfyniad MLA

Watts, P. F., and A. Naysmith. Urban Bus Revenue Collection: Current Methods and Directions of Development. Transport and Road Research Laboratory, 1980.

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