Columbia subject headings:
Harvard subject headings:
Police chiefs--Great Britain--History--19th century--Directories.
Police chiefs--Great Britain--History--20th century--Directories.
Police--Great Britain--History--19th century--Directories.
Police--Great Britain--History--20th century--Directories.
Princeton subject headings:
Directories.
Police chiefs--Great Britain--History--19th century--Directories.
Police chiefs--Great Britain--History--20th century--Directories.
Police--Great Britain--History--19th century--Directories.
Police--Great Britain--History--20th century--Directories.