_____. Health and Light — The Effects of Natural and Artificial Light on Man and Other Living Things. Old Greenwich, Conn.: Devin-Adair, 1973.
Paracelsus. Sdmtliche Werke von Theophrast von Hohenheim gen. Paracelsus. 20 vols. Munich: R. Oldenbourg, 1922-65.
Parasnis, D. S. Magnetism. London: Hutchison, 1961.
Parker, Dana C., and Wolff, Michael F. “Remote Sensing.” International Science and Technology, July 1965.
Payne, Alan. “ ‘Secret Life of Plants' Revealed by Biologist.” Performance, vol. 1, no. 41, Mar. 29, 1973.
Pekin, L. B. Darwin. New York: Stackpole Sons, 1938.
Pelt, Jean-Marie. Evolution et Sexuality des Plantes. Paris: Horizons de France, 1970.
Perkins, Eric. The Original Concepts of the Late Dr. Albert Abrams. A lecture delivered to the Radionic Association, March 17, 1956. Burford, Oxon, England: Radionic Association.
Pfeffer, Wilhelm. Pflanzenphysiologie. Leipzig: W. Engelmann, 1881.
Pfeiffer, Ehrenfried. The Compost Manufacturer’s Manual. Philadelphia: Pfeiffer Foundation, 1956.
_____. Sensitive Crystalization Processes: A Demonstration of Formative Forces in the Blood. Dresden: E. Weises Buchhandlung, 1936.
_____. The Earth’s Face and Human Destiny. Emmaus, Pa.: Rodale Press, 1947.
_____. Formative Forces in Crystalization New York. Anthroposophic Press, 1936.
_____. Practical Guide to the Use of the Bio-Dynamic Preparations. London. R. Steiner Pub Co, 1945.
_____. Weeds and What They Tell Bio-Dynamic Farming and Gardening Association, Inc.
Philbrick, Helen, and Gregg, Richard. Companion Plants and How to Use Them. Old Greenwich, Conn.: Devin-Adair Co., 1966.
Philbrick, John and Helen. The Bug Book: Harmless Insect Controls. Selfpublished, 1963.
Picton, Lionel James. Nutrition and the Soil: Thoughts on Feeding. New York: Devin-Adair, 1949.
Pierrakos, John C. The Energy Field in Man and Nature. New York: Institute of Bioenergetic Analysis, 1971.
Pressman, A. S. Electromagnetic Fields and Life. New York and London: Plenum Press, 1970.
Priestley, Joseph. The History and Present State of Electricity with Original Experiments. London, 1767.
Pringsheim, Peter, and Vogel, Marcel. Luminescence of Liquids and Solids and Its Practical Application. New York: Interscience Pubs., 1943.
Preuss, Wilhelm H. “Aus ‘Geist und StoflF,’ die Arbeiten von Herzeles,” in Hauschka, Rudolf, Substanzlehre, V. Klosterman, Frankfurt am Main, 1942.
Prevention' The Magazine for Better Health. (Monthly journal.) Emmaus, Pa.: The Rodale Press.
Puharich, Andrija. The Sacred Mushroom: Key to the Door of Eternity. Garden City, N.Y.: Doubleday, 1959.
_____. Beyond Telepathy. London: Darton, Longman and Todd, 1962.
Pullen, Alice Muriel. Despite the Colour Bar. London: S.C.M. Press Ltd., 1946.
Pushkin, V. N. “Flower Recall/' Znaniya Sila, Nov. 1972, in Russian.
Rahn, Otto. Invisible Radiations of Organisms. Berlin: Gebriider Borntraeger, 1936.
Ravitz, L. J. “Periodic Changes in Electromagnetic Fields,” Annals, New York Academy of Sciences, vol. 46, 1972, pp. 22–30.
Regnault, Jules Emile J. Les Methodes d Abrams. Paris: N. Maloine,1927.
Reich, Wilhelm. The Discovery of the Orgone: Volume I, The Function of the Orgasm, Sex-Economic Problems of Biological Energy. New York: Orgone Inst. Press, 1942.
_____. The Discovery of the Orgone: Volume II, The Cancer Biopathy. New York: Orgone Inst. Press, 1948.
Reichenbach, Karl L. F., Freiherr von. The Odic Force; Letters on Od and Magnetism. New Hyde Park, N.Y.: University Books, 1968.