Columbia subject headings:
African American police--New York (State)--New York--History.
New York (N.Y.)--History.
New York (N.Y.). Police Department.
Harvard subject headings:
African American police--New York (State)--New York--History.
New York (N.Y.). Police Department
Police--New York (State)--New York--History.
Princeton subject headings:
African American police--New York (State)--New York--History.
New York (N.Y.). Police Department
Police--New York (State)--New York--History.