Hobbs, F. D., & Hobbs, F. D. (1979). Traffic planning and engineering (2. edition.). Oxford: Pergamon.
Chicago Style CitationHobbs, Frederick Derek, and Frederick Derek Hobbs. Traffic Planning and Engineering. 2. edition. Oxford: Pergamon, 1979.
MLA CitationHobbs, Frederick Derek, and Frederick Derek Hobbs. Traffic Planning and Engineering. 2. edition. Oxford: Pergamon, 1979.
Warning: These citations may not always be 100% accurate.