SPIEGEL, M. (1972). THEORY & PROBLEMS OF STATISTICS. MC GRAW HILL PUBLICATION.
Chicago-čujuhus (17. p.)SPIEGEL, M.R. THEORY & PROBLEMS OF STATISTICS. New York: MC GRAW HILL PUBLICATION, 1972.
MLA-čujuhus (9. p.)SPIEGEL, M.R. THEORY & PROBLEMS OF STATISTICS. MC GRAW HILL PUBLICATION, 1972.
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