Columbia subject headings:
Guisan, Henri, 1874-1960.
Switzerland--Defenses.
World War, 1939-1945--Switzerland.
Harvard subject headings:
Guisan, Henri, 1874-1960.
Switzerland--Defenses.
World War, 1939-1945--Switzerland.
Princeton subject headings:
Guisan, Henri, 1874-1960.
Switzerland--Defenses.
World War, 1939-1945--Switzerland.