National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Committee on Characteristics of Traffic Flow, & National Research Council (U.S.). Highway Research Board. Committee on Parking. (1969). Parking: 2 reports. National Academy of Science - National Research Council.
Chicago-referens (17:e uppl.)National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Committee on Characteristics of Traffic Flow, och National Research Council (U.S.). Highway Research Board. Committee on Parking. Parking: 2 Reports. Washington, D.C: National Academy of Science - National Research Council, 1969.
MLA-referens (9:e uppl.)National Research Council (U.S.). Highway Research Board, et al. Parking: 2 Reports. National Academy of Science - National Research Council, 1969.