Bowerman, B. L. (2003). Business statistics in practice ed.3[ada CD]. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Bowerman, Bruce L. Business Statistics in Practice Ed.3[ada CD]. McGraw-Hill, 2003.
Lua MLA (8ú heag.)Bowerman, Bruce L. Business Statistics in Practice Ed.3[ada CD]. McGraw-Hill, 2003.
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