Hahn, M. D. (2018). The girl in the locked room: A ghost story. Clarion Books, Houghton Mifflin Harcourt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHahn, Mary Downing. The Girl in the Locked Room: A Ghost Story. Boston ; New York: Clarion Books, Houghton Mifflin Harcourt, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHahn, Mary Downing. The Girl in the Locked Room: A Ghost Story. Clarion Books, Houghton Mifflin Harcourt, 2018.
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