Van Praagh, J. (2006). Heaven and earth: Making the psychic connection (Trade pbk. ed.). Pocket Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVan Praagh, James. Heaven and Earth: Making the Psychic Connection. Trade pbk. ed. New York: Pocket Books, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVan Praagh, James. Heaven and Earth: Making the Psychic Connection. Trade pbk. ed. Pocket Books, 2006.
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