Operating multi-modal urban transportation systems /
prepared by System Design Concepts, Inc.

APA Citation

United States. Dept. of Transportation. Office of the Secretary., System Design Concepts, i. (1977). Operating multi-modal urban transportation systems. [United States]: System Design.

MLA Citation

United States. Dept. of Transportation. Office of the Secretary, and inc System Design Concepts. Operating Multi-modal Urban Transportation Systems. [United States]: System Design, 1977.