Columbia subject headings:
Collingwood, R. G. (Robin George), 1889-1943.
Lewis, C. S. (Clive Staples), 1898-1963.
Magdalen College (University of Oxford)--History--20th century.
Philosophy, English--20th century.
Smith, J. A. (John Alexander), 1863-1939.
Webb, Clement Charles Julian, 1865-1954.
Harvard subject headings:
Collingwood, R. G. (Robin George), 1889-1943.
Lewis, C. S. (Clive Staples), 1898-1963
Lewis, C. S. (Clive Staples), 1898-1963--Philosophy.
Magdalen College (University of Oxford)--History--20th century.
Philosophy, English--20th century.
Smith, J. A. (John Alexander), 1863-1939.
Webb, Clement Charles Julian, 1865-1954.
Princeton subject headings:
Collingwood, R. G. (Robin George), 1889-1943.
Lewis, C. S. (Clive Staples), 1898-1963.
Magdalen College (University of Oxford)--History--20th century.
Philosophy, English--20th century.
Smith, J. A. (John Alexander), 1863-1939.
Webb, Clement Charles Julian, 1865-1954.