1. The Practice of Social Research;Babbie,1998
2. Discrete Choice Analysis: Theory and Application to Travel Demand;Ben-Akiva,1985
3. Forecasting automobile demand using disaggregate choice models;Berkovec;Transportation Research B,1985
4. A nested logit model of automobile holdings for one vehicle households;Berkovec;Transportation Research B,1985
5. Bureau of Transportation Statistics, 1999. National Transportation Statistics 1999. Tables 1–16 and 1–17