Edwards, M. (2023). The puzzle of Blackstone Lodge. Poisoned Pen Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEdwards, Martin. The Puzzle of Blackstone Lodge. Naperville, Illinois: Poisoned Pen Press, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEdwards, Martin. The Puzzle of Blackstone Lodge. Poisoned Pen Press, 2023.
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