(1968). Tommorrow's transportation: New systems for the urban future. Washington, D.C: U.S. Department of Housing and Urban Development. Office of Metropolitan Development. Urban Transporation Administration.
Παραπομπή Chicago StyleTommorrow's Transportation: New Systems for the Urban Future. Washington, D.C: U.S. Department of Housing and Urban Development. Office of Metropolitan Development. Urban Transporation Administration, 1968.
Παραπομπή MLATommorrow's Transportation: New Systems for the Urban Future. Washington, D.C: U.S. Department of Housing and Urban Development. Office of Metropolitan Development. Urban Transporation Administration, 1968.
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