Goetz,A. (1970). Introduction to Differential Geometry. Addison Wesley Publishing Co.
शिकागो स्टाइल उद्धरणGoetz,A. Introduction to Differential Geometry. London: Addison Wesley Publishing Co, 1970.
एमएलए उद्धरणGoetz,A. Introduction to Differential Geometry. Addison Wesley Publishing Co, 1970.
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