Columbia subject headings:
God--Proof.
Harvard subject headings:
Christianity and culture.
Conduct of life.
Freud, Sigmund, 1856-1939
God--Proof
Lewis, C. S. (Clive Staples), 1898-1963
Psychology and religion.
Psychology, Religious.
Religion and culture.
Religion--Philosophy
Theism
Princeton subject headings:
Freud, Sigmund, 1856-1939.
God--Proof.
Lewis, C. S. (Clive Staples), 1898-1963.