Spiegel, M. R. (1956). Schaum's outline theory and problems of college algebra. Mcgraw company.
शिकागो स्टाइल उद्धरणSpiegel, Murray R. Schaum's Outline Theory and Problems of College Algebra. New York: Mcgraw company, 1956.
एमएलए उद्धरणSpiegel, Murray R. Schaum's Outline Theory and Problems of College Algebra. Mcgraw company, 1956.
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