Columbia subject headings:
Canada--Race relations--History--20th century.
Race--Political aspects--Canada--History--20th century.
Race--Social aspects--Canada--History--20th century.
Harvard subject headings:
Canada--Race relations--History--20th century.
Race--Political aspects--Canada--History--20th century.
Race--Social aspects--Canada--History--20th century.
Princeton subject headings:
Canada--Race relations--History--20th century.
Race--Political aspects--Canada--History--20th century.
Race--Social aspects--Canada--History--20th century.