SPIEGEL MURRAY R. (1981). STATISITICS: THEORY AND PROBLEMS. MCGRAW-HILL.
Chicago-čujuhus (17. p.)SPIEGEL MURRAY R. STATISITICS: THEORY AND PROBLEMS. MCGRAW-HILL; SINGAPORE: MCGRAW-HILL, 1981.
MLA-čujuhus (9. p.)SPIEGEL MURRAY R. STATISITICS: THEORY AND PROBLEMS. MCGRAW-HILL, 1981.
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