Morris, G., & Hecht, P. (2014). The beginning of sorrows: Omega (morris) series, book 1 (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMorris, Gilbert, और Paul Hecht. The Beginning of Sorrows: Omega (morris) Series, Book 1. Unabridged. Prince Frederick: Recorded Books Inc., 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMorris, Gilbert, और Paul Hecht. The Beginning of Sorrows: Omega (morris) Series, Book 1. Unabridged. Recorded Books Inc., 2014.
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