Armstrong, K., & Martin, J. (2010). The other side of mercy: A killer's journey across the American divide. Dog Ear Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रArmstrong, Ken, और Jonathan Martin. The Other Side of Mercy: A Killer's Journey Across the American Divide. Indianapolis, IN: Dog Ear Publishing, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रArmstrong, Ken, और Jonathan Martin. The Other Side of Mercy: A Killer's Journey Across the American Divide. Dog Ear Publishing, 2010.
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