Thankappan Nair, P. (2004). Origin of the National Library of India: Days of the Calcutta public library. National Library of India.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThankappan Nair, P. Origin of the National Library of India: Days of the Calcutta Public Library. National Library of India, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThankappan Nair, P. Origin of the National Library of India: Days of the Calcutta Public Library. National Library of India, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.