Katter, C. K. Fallen angels and evil spirit beings: A neglected and forgotten reality. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKatter, Calvin K. Fallen Angels and Evil Spirit Beings: A Neglected and Forgotten Reality. [S.l.]: [s.n.].
एमएलए (9वां संस्करण) प्रशस्ति पत्रKatter, Calvin K. Fallen Angels and Evil Spirit Beings: A Neglected and Forgotten Reality. [s.n.].
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.