Columbia subject headings:
Bus lines--United States.
People with disabilities--Services for--United States.
People with disabilities--Transportation--United States.
People with disabilities--Travel--United States.
Harvard subject headings:
Bus lines--United States.
People with disabilities--Services for--United States
People with disabilities--Transportation--Law and legislation--United States.
People with disabilities--Transportation--United States
People with disabilities--Travel--United States.
Princeton subject headings:
Bus lines--United States.
People with disabilities--Transportation--United States.
People with disabilities--Travel--United States.