Não informado. (1939). Bulletin of the Oxford University Institute of Statistics. Oxford University Institute of Statistics.
Chicago-viite (17. p.)Não informado. Bulletin of the Oxford University Institute of Statistics. Oxford, Inglaterra: Oxford University Institute of Statistics, 1939.
MLA-viite (8. p.)Não informado. Bulletin of the Oxford University Institute of Statistics. Oxford University Institute of Statistics, 1939.
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