Koenig, N. (1961). The economic needs of American Samoa: Study made for the Committee on Interior and Insular Affairs, United States Senate. U.S. Government Printing Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Koenig, Nathan. The Economic Needs of American Samoa: Study Made for the Committee on Interior and Insular Affairs, United States Senate. Washington: U.S. Government Printing Office, 1961.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Koenig, Nathan. The Economic Needs of American Samoa: Study Made for the Committee on Interior and Insular Affairs, United States Senate. U.S. Government Printing Office, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.