Glenn, W. H. (1961). Invitation to mathematics. Garden City, New York: Doubleday.
शिकागो स्टाइल उद्धरणGlenn, William H. Invitation to Mathematics. Garden City, New York: Doubleday, 1961.
एमएलए उद्धरणGlenn, William H. Invitation to Mathematics. Garden City, New York: Doubleday, 1961.
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