BOWERMAN, B. L., O'CONNELL, R. T., & MURPHREE, E. S. (2011). Business statistics in practice. McGraw-Hill Book Company.
Lua i Stíl Chicago (17ú heag.)BOWERMAN, Bruce L., Richard T. O'CONNELL, agus Emily S. MURPHREE. Business Statistics in Practice. McGraw-Hill Book Company, 2011.
Lua MLA (9ú heag.)BOWERMAN, Bruce L., et al. Business Statistics in Practice. McGraw-Hill Book Company, 2011.
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