Mason, R. D. (1970). Statistical techniques in business and economics. Richard D. Irwin.
Lua i Stíl Chicago (17ú heag.)Mason, Robert D. Statistical Techniques in Business and Economics. Georgetown, ON: Richard D. Irwin, 1970.
Lua MLA (9ú heag.)Mason, Robert D. Statistical Techniques in Business and Economics. Richard D. Irwin, 1970.
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