Pendergrast, M. (1999). Uncommon grounds: The history of coffee and how it transformed our world. Basic Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPendergrast, Mark. Uncommon Grounds: The History of Coffee and How It Transformed Our World. New York: Basic Books, 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPendergrast, Mark. Uncommon Grounds: The History of Coffee and How It Transformed Our World. Basic Books, 1999.
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