TY  - BOOK
AU  - Burkhardt, Jon E.
AU  - McGavock, Adam T., coaut.
ED  - National Research Council. Transportation Research Board (E-.U.A.)
TI  - Improving public transit options for older persons. volume -1: handbook / Jon E. Burkhardt, Adam T. McGavock
CY  - Washington, D.C. : TRB
ER  -