Columbia subject headings:
Canadian Security Intelligence Service.
Intelligence service.
Le Carré, John, 1931-2020--Criticism and interpretation.
Harvard subject headings:
Canadian Security Intelligence Service
Intelligence service.
Le Carré, John, 1931-2020--Criticism and interpretation.
Princeton subject headings:
Canadian Security Intelligence Service.
Intelligence service.
Le Carré, John, 1931---Criticism and interpretation.