PARRAGON BOOKS. (2019). OUR WORLD INCREDIBLE BUT TRUE FACTS (2016 Ed.). PARRAGON BOOK PUBLISHERS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPARRAGON BOOKS. OUR WORLD INCREDIBLE BUT TRUE FACTS. 2016 Ed. LONDON: PARRAGON BOOK PUBLISHERS, 2019.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPARRAGON BOOKS. OUR WORLD INCREDIBLE BUT TRUE FACTS. 2016 Ed. PARRAGON BOOK PUBLISHERS, 2019.
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