Bartels, R. (1963). Ethics in business. Bureau of Business Research, College of Commerce and Administration, Ohio State University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bartels, Robert. Ethics in Business. Columbus: Bureau of Business Research, College of Commerce and Administration, Ohio State University, 1963.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bartels, Robert. Ethics in Business. Bureau of Business Research, College of Commerce and Administration, Ohio State University, 1963.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.