Carlson, P. A., Forkner, H. L., & Boynton, L. D. (1963). 20th century bookkeeping and accounting: Advanced course (20th ed.). South-Western Pub. Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carlson, Paul A., Hamden Landon Forkner, و Lewis Delano Boynton. 20th Century Bookkeeping and Accounting: Advanced Course. 20th ed. [Cincinnati: South-Western Pub. Co., 1963.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Carlson, Paul A., et al. 20th Century Bookkeeping and Accounting: Advanced Course. 20th ed. South-Western Pub. Co., 1963.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.