Spiegel, M. R. (2000). Theory and Problems of Statistics (3rd.). Tata McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Spiegel, Murray R. Theory and Problems of Statistics. 3rd. New Delhi: Tata McGraw Hill, 2000.
Lua MLA (9ú heag.)Spiegel, Murray R. Theory and Problems of Statistics. 3rd. Tata McGraw Hill, 2000.
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