Columbia subject headings:
Great Britain. Army. Special Air Service--History.
Soldiers--Great Britain--Biography.
Terrorism--Northern Ireland--Prevention.
Williams, Jack.
Harvard subject headings:
Great Britain. Army. Special Air Service--History.
Northern Ireland--History, Military.
Soldiers--Great Britain--Biography
Special forces (Military science)--Northern Ireland--History.
Terrorism--Northern Ireland--Prevention.
Williams, Jack.
Princeton subject headings:
Great Britain. Army. Special Air Service Regiment--History.
Soldiers--Great Britain--Biography.
Terrorism--Northern Ireland--Prevention.
Williams, Jack.