SPIEGEL, M. (1972). Theory And Problems Of Statistics In Si Units / Murray Spiegel. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)SPIEGEL, Murray. Theory And Problems Of Statistics In Si Units / Murray Spiegel. McGraw-Hill, 1972.
Lua MLA (8ú heag.)SPIEGEL, Murray. Theory And Problems Of Statistics In Si Units / Murray Spiegel. McGraw-Hill, 1972.
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