United Business Education Association (U.S.) & National Business Education Association. (1949). Business education forum. United Business Education Association.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United Business Education Association (U.S.) و National Business Education Association. Business Education Forum. [Washington, D.C.]: United Business Education Association, 1949.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United Business Education Association (U.S.) و National Business Education Association. Business Education Forum. United Business Education Association, 1949.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.