Columbia subject headings:
Harvard subject headings:
Canada--Foreign relations--1945-
Canada--Politics and government--1945-1980.
Martin, Paul, 1903-
Statesmen--Canada--Biography.
Princeton subject headings:
Canada--Foreign relations--1945-
Canada--Politics and government--1945-1980.
Martin, Paul, 1903-1992.
Statesmen--Canada--Biography.