1. Automotive News Almanac,1967
2. Automobile Forecasting Models;Ayres;Working Paper IRT-446-R,1976
3. An investigation of the role of accessibility in basic transportation choice behavior;Burns,1975
4. Impact of Trade Policies on the U.S. Automobile Market;Charles River Associates,1976
5. Demand for Automobiles in the United States;Chow,1957