Spiegel, M. (1961). Theory and problems of statistics. Mc Graw Hills Company.
शिकागो स्टाइल उद्धरणSpiegel, Murray. Theory and Problems of Statistics. Sydney: Mc Graw Hills Company, 1961.
एमएलए उद्धरणSpiegel, Murray. Theory and Problems of Statistics. Mc Graw Hills Company, 1961.
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