Duncan, E. J. (2016). Murder on the hour: A Penny Brannigan mystery (First edition.). Minotaur Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDuncan, Elizabeth J. Murder on the Hour: A Penny Brannigan Mystery. First edition. New York: Minotaur Books, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDuncan, Elizabeth J. Murder on the Hour: A Penny Brannigan Mystery. First edition. Minotaur Books, 2016.
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