توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Li, N. N. (1988). Separation technology: Proceedings of the Engineering Foundation Conference held at Schloss Elmau, Bavaria, West Germany, April 27 to May 1, 1987. Engineering Foundation.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Li, Norman N. Separation Technology: Proceedings of the Engineering Foundation Conference Held at Schloss Elmau, Bavaria, West Germany, April 27 to May 1, 1987. New York: Engineering Foundation, 1988.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Li, Norman N. Separation Technology: Proceedings of the Engineering Foundation Conference Held at Schloss Elmau, Bavaria, West Germany, April 27 to May 1, 1987. Engineering Foundation, 1988.