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.
Citazione stile Chigago Style (17a edizione)Cooper, B. R., e R. E. Layfield. Bus Priority at Traffic Signals Terminating a Contra-flow Bus Lane in Walsall. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1977.
Citatione MLA (9a ed.)Cooper, B. R., e R. E. Layfield. Bus Priority at Traffic Signals Terminating a Contra-flow Bus Lane in Walsall. Transport and Road Research Laboratory, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.