Ackerman, D., & Caruso, B. (2014). The human age: The world shaped by us (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAckerman, Diane, और Barbara Caruso. The Human Age: The World Shaped by Us. Unabridged. Prince Frederick: Recorded Books Inc., 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAckerman, Diane, और Barbara Caruso. The Human Age: The World Shaped by Us. Unabridged. Recorded Books Inc., 2014.
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