Willard, S. (1970). General Topology. Reading, Massachusetts: Addison-Wesley.
शिकागो स्टाइल उद्धरणWillard, Stephen. General Topology. Reading, Massachusetts: Addison-Wesley, 1970.
एमएलए उद्धरणWillard, Stephen. General Topology. Reading, Massachusetts: Addison-Wesley, 1970.
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