- Gödel, Kurt, "On Formally Undecidable Propositions of the Principia Mathematica and Related Systems," pages 3-38, The Undecidable, Raven Press 1965
- Heilbroner, Robert L., An Inquiry into the Human Prospect, Norton and Co. 1974
- Heisenberg, Werner, Physics and Philosophy, Harper Torchbooks 1962
- Heisenberg, Werner, Across the Frontiers, World Perspectives, Harper and Row 1974
- Hoyle, Fred, Encounter with the Future, Credo Perspectives, Simon and Schuster 1968
- Hoyle, Fred, The New Face of Science, Perspectives in Humanism, World Publishing Co. 1971
- Kramer, Edna E., The Nature and Growth of Modern Mathematics, Fawcett Permier Books 1974
- Kuhn, Thomas S., The Structure of Scientific Revolutions, University of Chicago Press 1970
- Layzer, David, The Arrow of Time, Scientific American, December 1975
- Levinson, Harry, The Exceptional Executive, Mentor Books 1971
- Maltz, Maxwell, Psycho-Cybernetics, Wilshire Book Co. 1971
- Nagel, Ernest and Newman, James R., Gödel's Proof, New York U. Press 1958
- Osborne, Alex F., Applied Imagination, Scribners and Sons 1963
- Pearce, Joseph Chilton, The Crack in the Cosmic Egg, Pocket Book 1975
- Pearce, Joseph Chilton, Exploring the Crack in the Cosmic Egg, Pocket Book 1975
- Piaget, Jean, Structuralism, Harper Torchbooks 1971
- Polanyi, Michael, Knowing and Being, University of Chicago Press 1969
- Singh, Jagjit, Great Ideas of Modern Mathematics: Their Nature and Use, Dover 1959
- Skinner, B.F., Beyond Freedom and Dignity, Bantom/Vintage Books 1972
- Thompson, William Irwin, At the Edge of History, Harper Colophon Books 1972
- Thompson, William Irwin, Evil and World Order, World Perspective, Harper and Row 1976
- Tse-Tung, Mao, Four Essays on China and World Communism, Lancer Books 1972
- Waismann, Friedrich, Introduction to Mathematical Thinking, Harper Torchbooks 1959
- Watts, Alan, The Book, Vintage Books 1972
- Yukawa, Hideki, Creativity and Intuition, Kodansha International LTD 1973
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