توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

U.S. National Archives and Records Service. General Services Administration. Records Management Division. (1955). Records management handbook: Managing correspondence _ plain letters. s.n.].

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

U.S. National Archives and Records Service. General Services Administration. Records Management Division. Records Management Handbook: Managing Correspondence _ Plain Letters. [S.l: s.n.], 1955.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

U.S. National Archives and Records Service. General Services Administration. Records Management Division. Records Management Handbook: Managing Correspondence _ Plain Letters. s.n.], 1955.