Murphy, S. R., & Boyce, S. (2013). Cat on the edge: A joe grey mystery (Unabridged.). Blackstone Audio, Inc., and Buck 50 Productions, LLC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMurphy, Shirley Rousseau, और Susan Boyce. Cat on the Edge: A Joe Grey Mystery. Unabridged. Ashland: Blackstone Audio, Inc., and Buck 50 Productions, LLC, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMurphy, Shirley Rousseau, और Susan Boyce. Cat on the Edge: A Joe Grey Mystery. Unabridged. Blackstone Audio, Inc., and Buck 50 Productions, LLC, 2013.
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