Library of Congress. National Preservation Program Office. (1985). National preservation news: A newsletter of the National Preservation Program Office, the Library of Congress. The Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Library of Congress. National Preservation Program Office. National Preservation News: A Newsletter of the National Preservation Program Office, the Library of Congress. Washington, D.C.: The Office, 1985.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Library of Congress. National Preservation Program Office. National Preservation News: A Newsletter of the National Preservation Program Office, the Library of Congress. The Office, 1985.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.