University Publications of America (Firm), United States. Department of State, Reynolds, D., & Hydrick, B. (1992). Confidential U.S. State Department central files: Decimal numbers 791, 891, and 991. University Publications of America.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University Publications of America (Firm), United States. Department of State, Dale Reynolds, و Blair Hydrick. Confidential U.S. State Department Central Files: Decimal Numbers 791, 891, and 991. Bethesda, MD: University Publications of America, 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)University Publications of America (Firm), et al. Confidential U.S. State Department Central Files: Decimal Numbers 791, 891, and 991. University Publications of America, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.