WHELDON, H. (1964). Business statistics and statistical method (5th ed.). Macdonald & Evans.
Chicago-viite (17. p.)WHELDON, H.J. Business Statistics and Statistical Method. 5th ed. London: Macdonald & Evans, 1964.
MLA-viite (9. p.)WHELDON, H.J. Business Statistics and Statistical Method. 5th ed. Macdonald & Evans, 1964.
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