Fowler, C., & Goodman, T. (2013). Seventy-seven clocks: Bryant and may series, book 3 (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFowler, Christopher, और Tim Goodman. Seventy-seven Clocks: Bryant and May Series, Book 3. Unabridged. Prince Frederick: Recorded Books Inc., 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFowler, Christopher, और Tim Goodman. Seventy-seven Clocks: Bryant and May Series, Book 3. Unabridged. Recorded Books Inc., 2013.
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