Bender, D. E. (2010). American abyss: Savagery and civilization in the age of industry. Permanent Black.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBender, Daniel E. American Abyss: Savagery and Civilization in the Age of Industry. Permanent Black, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBender, Daniel E. American Abyss: Savagery and Civilization in the Age of Industry. Permanent Black, 2010.
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