THE BOOK PARADISE. (2011). AWESOME FACTS ABOUT INVENTORS AND INVENTIONS. THE BOOK PARADISE.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTHE BOOK PARADISE. AWESOME FACTS ABOUT INVENTORS AND INVENTIONS. THE BOOK PARADISE, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTHE BOOK PARADISE. AWESOME FACTS ABOUT INVENTORS AND INVENTIONS. THE BOOK PARADISE, 2011.
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