Columbia subject headings:
Affirmative action programs--United States.
Federal aid to minority business enterprises--United States.
Federal aid to transportation--United States.
Government purchasing--United States.
Public contracts--United States.
Harvard subject headings:
Affirmative action programs--United States
Federal aid to minority business enterprises--United States.
Federal aid to transportation--United States.
Government purchasing--United States.
Public contracts--United States
Princeton subject headings:
Affirmative action programs--United States.
Federal aid to minority business enterprises--United States.
Federal aid to transportation--United States.
Government purchasing--United States.
Public contracts--United States.