Axelby, R., & Axelby, R. (2010). Science and the changing environment in India: A guide to sources in the India Office Records. British Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAxelby, Richard, और Richard;Nair Axelby. Science and the Changing Environment in India: A Guide to Sources in the India Office Records. British Library, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAxelby, Richard, और Richard;Nair Axelby. Science and the Changing Environment in India: A Guide to Sources in the India Office Records. British Library, 2010.
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