Bowerman, B. L., & O`Connell, R. T. (2007). Business statistics in practice: With additional examples and exercises and selected appendices, megastat software and other contributions (4th ed.). McGraw-Hill.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bowerman, Bruce L., و Richard T. O`Connell. Business Statistics in Practice: With Additional Examples and Exercises and Selected Appendices, Megastat Software and Other Contributions. 4th ed. Boston, MA: McGraw-Hill, 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Bowerman, Bruce L., و Richard T. O`Connell. Business Statistics in Practice: With Additional Examples and Exercises and Selected Appendices, Megastat Software and Other Contributions. 4th ed. McGraw-Hill, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.