Ackerman, D. (2014). The human age: The world shaped by us (First edition.). W.W. Norton & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAckerman, Diane. The Human Age: The World Shaped by Us. First edition. New York, NY: W.W. Norton & Company, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAckerman, Diane. The Human Age: The World Shaped by Us. First edition. W.W. Norton & Company, 2014.
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