1. Asmus J.R. (1973) Parsons Brinckerhoff, Tudor and Bechtel: Consultants to BARTD.
2. 1973 Almanac and Almanacs from previous years;Automotive News,1973
3. Energy requirements for urban vehicles;Barton,1973
4. The production and consumption of automobiles: an energy analysis of the manufacture, discard and reuse of the automobile and its component materials;Berry;Report for the Illinois Institute for Environmental Quality,1972
5. Energy cost of automobiles;Berry;Bulletin of Atomic Scientists (Science and Public Affairs),1973