Clark, M. J. B. (2014). That old black magic: A Piper Donovan mystery. William Morrow.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClark, Mary Jane Behrends. That Old Black Magic: A Piper Donovan Mystery. New York: William Morrow, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रClark, Mary Jane Behrends. That Old Black Magic: A Piper Donovan Mystery. William Morrow, 2014.
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