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.
Παραπομπή σε μορφή Chicago (17η εκδ.)JHK & Associates και 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.
Παραπομπή σε μορφή MLA (9th εκδ.)JHK & Associates και 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.