Columbia subject headings:
Canada. National Selective Service.
Draft--Canada.
Industrial mobilization--Canada--History--20th century.
World War, 1939-1945--Manpower--Canada.
Harvard subject headings:
Canada. National Selective Service.
Draft--Canada.
Industrial mobilization--Canada--History--20th century.
World War, 1939-1945--Manpower--Canada.
Princeton subject headings:
Canada. National Selective Service
Draft--Canada.
Industrial mobilization--Canada--History--20th century.
World War, 1939-1945--Manpower--Canada.