Bar, C. (2010). Elementary differential geometry (First South Asian edition 2011.). Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBar, Christian. Elementary Differential Geometry. First South Asian edition 2011. New York: Cambridge University Press, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBar, Christian. Elementary Differential Geometry. First South Asian edition 2011. Cambridge University Press, 2010.
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