APA

Davies D. G., . (1999). Research, development, and implementation of pedestrian safety facilities in the United Kingdom. McLean, VA: U.S. Department of Transportation. Federal Highway Administration.

Chicago

Davies David G, . 1999. Research, development, and implementation of pedestrian safety facilities in the United Kingdom. McLean, VA: U.S. Department of Transportation. Federal Highway Administration.

Harvard

Davies D. G., . (1999). Research, development, and implementation of pedestrian safety facilities in the United Kingdom. McLean, VA: U.S. Department of Transportation. Federal Highway Administration.

MLA

Davies David G, . Research, development, and implementation of pedestrian safety facilities in the United Kingdom. McLean, VA: U.S. Department of Transportation. Federal Highway Administration. 1999.