Tyler, K. (1994). There's an angel on your shoulder: Angel encounters in everyday life (Berkley trade pbk. ed.). Berkley Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTyler, Kelsey. There's an Angel on Your Shoulder: Angel Encounters in Everyday Life. Berkley trade pbk. ed. New York: Berkley Books, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTyler, Kelsey. There's an Angel on Your Shoulder: Angel Encounters in Everyday Life. Berkley trade pbk. ed. Berkley Books, 1994.
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