Berman, E. M., & Wang, X. (2018). Essential statistics for public managers and policy analysts (Fourth edition.). SAGE CQ Press.
Lua i Stíl Chicago (17ú heag.)Berman, Evan M., agus Xiaohu Wang. Essential Statistics for Public Managers and Policy Analysts. Fourth edition. Thousand Oaks, California: SAGE CQ Press, 2018.
Lua MLA (9ú heag.)Berman, Evan M., agus Xiaohu Wang. Essential Statistics for Public Managers and Policy Analysts. Fourth edition. SAGE CQ Press, 2018.
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