Gerlough, D. L., Gerlough, D. L., & Wagner, F. A. (1964). Improved criteria for traffic signals at individual intersections: Interim report. Highway Research Board.
Chicago Style (17th ed.) CitationGerlough, D. L., Daniel L. Gerlough, and Frederick A. Wagner. Improved Criteria for Traffic Signals at Individual Intersections: Interim Report. [Washington]: Highway Research Board, 1964.
MLA (9th ed.) CitationGerlough, D. L., et al. Improved Criteria for Traffic Signals at Individual Intersections: Interim Report. Highway Research Board, 1964.
Warning: These citations may not always be 100% accurate.