Columbia subject headings:
People with disabilities--Employment--United States--Statistics.
People with disabilities--United States--Statistics.
Vocational rehabilitation--United States--Statistics.
Harvard subject headings:
People with disabilities--Employment--United States--Statistics.
People with disabilities--United States--Statistics
Vocational rehabilitation--United States--Statistics.
Princeton subject headings:
People with disabilities--Employment--United States--Statistics.
People with disabilities--United States--Functional assessment--Statistics.