Spencer, M. B., Labell, L. N., & May, A. D. (1989). Detectors for freeway surveillance and control: An update. Institute of Transportation Studies, University of California.
Chicago Style (17th ed.) CitationSpencer, Mark B., Lawrence N. Labell, and Adolf D. May. Detectors for Freeway Surveillance and Control: An Update. Berkeley, Calif.: Institute of Transportation Studies, University of California, 1989.
MLA (9th ed.) CitationSpencer, Mark B., et al. Detectors for Freeway Surveillance and Control: An Update. Institute of Transportation Studies, University of California, 1989.
Warning: These citations may not always be 100% accurate.