Hammer, J., & Boehmer, P. (2016). The bad-ass librarians of timbuktu: And their race to save the world's most precious manuscripts (Unabridged.). HighBridge Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHammer, Joshua, और Paul Boehmer. The Bad-ass Librarians of Timbuktu: And Their Race to Save the World's Most Precious Manuscripts. Unabridged. Prince Frederick: HighBridge Audio, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHammer, Joshua, और Paul Boehmer. The Bad-ass Librarians of Timbuktu: And Their Race to Save the World's Most Precious Manuscripts. Unabridged. HighBridge Audio, 2016.
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