Duignan, B., & DeCarlo, C. (2019). The executive branch: Carrying out and enforcing laws. Britannica Educational Publishing in association with Rosen Educational Services.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Duignan, Brian, و Carolyn DeCarlo. The Executive Branch: Carrying Out and Enforcing Laws. New York, NY: Britannica Educational Publishing in association with Rosen Educational Services, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Duignan, Brian, و Carolyn DeCarlo. The Executive Branch: Carrying Out and Enforcing Laws. Britannica Educational Publishing in association with Rosen Educational Services, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.