Columbia subject headings:
Douglas, T. C. (Thomas Clement), 1904-1986.
Prime ministers--Saskatchewan--Biography.
Saskatchewan--Biography.
Saskatchewan--Politics and government.
Statesmen--Canada--Biography.
Harvard subject headings:
Douglas, T. C. (Thomas Clement), 1904-
Douglas, T. C. (Thomas Clement), 1904-1986.
Prime ministers--Saskatchewan--Biography.
Saskatchewan--Biography.
Saskatchewan--Politics and government.
Statesmen--Canada--Biography.
Princeton subject headings:
Douglas, T. C. (Thomas Clement), 1904-1986.
Saskatchewan--Politics and government.