Cita APA (7th ed.)

Cooper, B. R., & Layfield, R. E. (1977). Bus priority at traffic signals terminating a contra-flow bus lane in Walsall. Transport and Road Research Laboratory.

Cita Chicago (17th ed.)

Cooper, B. R., i R. E. Layfield. Bus Priority at Traffic Signals Terminating a Contra-flow Bus Lane in Walsall. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1977.

Cita MLA (9th ed.)

Cooper, B. R., i R. E. Layfield. Bus Priority at Traffic Signals Terminating a Contra-flow Bus Lane in Walsall. Transport and Road Research Laboratory, 1977.