Columbia subject headings:
Affirmative action programs--Law and legislation--United States.
Fire fighters--Legal status, laws, etc.--United States.
Police--United States.
Harvard subject headings:
Affirmative action programs--Law and legislation--United States
Fire fighters--Legal status, laws, etc.--United States
Police--United States
Princeton subject headings:
Affirmative action programs--Law and legislation--United States.
Fire fighters--Legal status, laws, etc.--United States.
Police--United States.