University of Texas at Austin. Bureau of Business Research. (1968). Research monograph. Bureau of Business Research, the University of Texas at Austin.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University of Texas at Austin. Bureau of Business Research. Research Monograph. [Austin, Tex.]: Bureau of Business Research, the University of Texas at Austin, 1968.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)University of Texas at Austin. Bureau of Business Research. Research Monograph. Bureau of Business Research, the University of Texas at Austin, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.