American University (Washington, D.C.) Foreign Area Studies, Nelson, H. D., & Nyrop, R. F. (1979). Libya, a country study (Third edition.). The University : for sale by the Supt. of Docs., U.S. Govt. Print. Off..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)American University (Washington, D.C.) Foreign Area Studies, Harold D. Nelson, و Richard F. Nyrop. Libya, a Country Study. Third edition. Washington: The University : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)American University (Washington, D.C.) Foreign Area Studies, et al. Libya, a Country Study. Third edition. The University : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.