O'Neill, B. (2006). Elementary differential geometry.- rev. 2nd ed (Rev. 2nd ed.). Elsevier Academic Press.
शिकागो स्टाइल उद्धरणO'Neill, Barrett. Elementary Differential Geometry.- Rev. 2nd Ed. Rev. 2nd ed. Amsterdam ; Boston: Elsevier Academic Press, 2006.
एमएलए उद्धरणO'Neill, Barrett. Elementary Differential Geometry.- Rev. 2nd Ed. Rev. 2nd ed. Elsevier Academic Press, 2006.
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