Columbia subject headings:
Collingwood, R. G. (Robin George), 1889-1943.
History--Philosophy.
Harvard subject headings:
Collingwood, R. G. (Robin George), 1889-1943.
History--Philosophy--History--20th century
Princeton subject headings:
Collingwood, R. G. (Robin George), 1889-1943.
History--Philosophy--History--20th century.