Philadelphia: University of Pennsylvania Press, 1959.
Davies, Paul. God and the New Physics. London: Dent, 1984; New York: Simon and Schuster, 1992.
Davies, Paul. The Mind of God. New York: Simon and Schuster, 1992.
Dawkins, Richard. The God Delusion. London: Bantam Press, 2006.
Dawkins, Richard. The Selfish Gene. New York: University Press, 1976.
Dodd, Charles H. The Interpretation of the Fourth Gospel. Cambridge University Press, 1968.
Dollar, Jim. The Evolution of the Idea of God. Greensboro, North Carolina: Outlands Press, 2006.
Einstein, Albert. Relativity: The Special and the General Theory. Translated by Robert W.Lawson. London: Methuen, 1920.
Elias, Norbert. The Loneliness of Dying. Translated by Edmond Jephcott. Oxford: Blackwell, 1985.
Engel, Elliot. Queen Victoria and the Victorian Novel. Taped lecture. Cary North Carolina: Authors Ink, 2002.",).
Epperly, Bruce G., and Lewis D. Solomon. Finding Angels in Boulders: An Interfaith Discussion on Dying and Death. St. Louis, Missouri: Chalice Press, 2004.
Erikson, Erik H. Identity and the Life Cycle. New York: Norton, 1980.
Farrer, Austin. Saving Belief: A Discussion of Essentials. London: Hodder and Stoughton, 1964.
Filippenko, Alex. Understanding the Universe: An Introduction to Astronomy. Lectures recorded on DVD from University of California in Berkeley. Chantilly, Virginia: Teaching Company, 1998.",).
Finn, Charles С Embraced It Will Serve You: Encounters with Death. Bloomington, Indiana: Milton Keynes; UK: Author House, 2006.
Finn, Charles С For the Mystically Inclined. Privately published, 2002.
Fitzroy, Robert. An Essay by the Captain of the Beagle. Recorded in a taped reading of the Voyage of the Beagle. Tantor Unabridged Classics. Phoenix Recordings, 2006."
Frankel, Victor. Man's Search for Meaning. Boston: Beacon Press, 1959.
Freud, Sigmund. The Future of an Illusion. Translated by James Strackey. New York: Norton, 1975.
Freud, Sigmund. Moses and Monotheism. Translated by Katherine Jones. New York: Vantage Books, 1967.
Freud, Sigmund. Totem and Taboo. New York: Norton, 1956.
Friedman, Edwin H. From Generation to Generation. New York: Guildford Press, 1985.
Fromm, Erich. The Art of Loving. New York: Harper and Row, 1956.
Fromm, Erich. Escape from Freedom. New York: Avon Books, 1941.
Fromm, Erich. The Heart of Man: Its Genius for Good and Evil. New York: Harper and Row, 1964.
Frost, Robert. The Collected Poems of Robert Frost. New York: Holt McDougal, 2002.
Funk, Robert, and Roy Hoover. The Five Gospels: The Search for the Authentic Words of Jesus.