Society of the Sigma XI\nScientific Research Society of America\nSigma XI, the Scientific Research Society of North America\nSigma XI, the Scientific Research Society. (1942). American Scientist. Society of the Sigma XI.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Society of the Sigma XI\nScientific Research Society of America\nSigma XI, the Scientific Research Society of North America\nSigma XI, the Scientific Research Society. American Scientist. New Haven, Conn: Society of the Sigma XI, 1942.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Society of the Sigma XI\nScientific Research Society of America\nSigma XI, the Scientific Research Society of North America\nSigma XI, the Scientific Research Society. American Scientist. Society of the Sigma XI, 1942.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.