Hall, P. (2013). Arsenic and old puzzles: A puzzle lady mystery (First edition.). Minotaur Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHall, Parnell. Arsenic and Old Puzzles: A Puzzle Lady Mystery. First edition. New York: Minotaur Books, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHall, Parnell. Arsenic and Old Puzzles: A Puzzle Lady Mystery. First edition. Minotaur Books, 2013.
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