Sanders, J. H., McGee, W., & Yoo, C. S. (1979). Safety features of stop signs at rail-highway grade crossings. Springfield Va.: National Technical Information Service.
Chicago Style CitationSanders, James H., W. McGee, and Chang S. Yoo. Safety Features of Stop Signs At Rail-highway Grade Crossings. Springfield Va.: National Technical Information Service, 1979.
MLA CitationSanders, James H., W. McGee, and Chang S. Yoo. Safety Features of Stop Signs At Rail-highway Grade Crossings. Springfield Va.: National Technical Information Service, 1979.
Warning: These citations may not always be 100% accurate.