JHK & Associates & United States. Urban Mass Transportation Administration. (1977). Public transportation: An element of the urban public transportation system : a training course. Dept. of Transportation], Federal Highway Administration, Urban Mass Transportation Administration.
Chicago-referens (17:e uppl.)JHK & Associates och United States. Urban Mass Transportation Administration. Public Transportation: An Element of the Urban Public Transportation System : A Training Course. [Washington: Dept. of Transportation], Federal Highway Administration, Urban Mass Transportation Administration, 1977.
MLA-referens (9:e uppl.)JHK & Associates och United States. Urban Mass Transportation Administration. Public Transportation: An Element of the Urban Public Transportation System : A Training Course. Dept. of Transportation], Federal Highway Administration, Urban Mass Transportation Administration, 1977.