APA
Cooper B., Layfield R., . (1977). Bus priority at traffic signals terminating a contra-flow bus lane in Walsall. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 252.
Chicago
Cooper BR, Layfield RE, . 1977. Bus priority at traffic signals terminating a contra-flow bus lane in Walsall. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 252.
Harvard
Cooper B., Layfield R., . (1977). Bus priority at traffic signals terminating a contra-flow bus lane in Walsall. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 252.
MLA
Cooper BR, Layfield RE, . Bus priority at traffic signals terminating a contra-flow bus lane in Walsall. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 252. 1977.