APA

Cooper P., . (1975). Effects of increased enforcement at urban intersections on driver behaviour and safety. Washington: Transportation Research Record nr 540.

Chicago

Cooper PJ, . 1975. Effects of increased enforcement at urban intersections on driver behaviour and safety. Washington: Transportation Research Record nr 540.

Harvard

Cooper P., . (1975). Effects of increased enforcement at urban intersections on driver behaviour and safety. Washington: Transportation Research Record nr 540.

MLA

Cooper PJ, . Effects of increased enforcement at urban intersections on driver behaviour and safety. Washington: Transportation Research Record nr 540. 1975.