Negley, K. (2015). Tough guys: (have feelings too) (First edition.). Flying Eye Books, an imprint of Nobrow Ltd..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNegley, Keith. Tough Guys: (have Feelings Too). First edition. London ; New York: Flying Eye Books, an imprint of Nobrow Ltd., 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNegley, Keith. Tough Guys: (have Feelings Too). First edition. Flying Eye Books, an imprint of Nobrow Ltd., 2015.
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