International Nannofossil Association. Conference, Crux, J. A., & Heck, S. E. v. (1989). Nannofossils and their applications: Proceedings of the International Nannofossil Association Conference, London, 1987. E. Horwood for the British Micropalaeontological Society Halsted Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Nannofossil Association. Conference, Jason A. Crux, و Shirley E. van Heck. Nannofossils and Their Applications: Proceedings of the International Nannofossil Association Conference, London, 1987. Chichester [England], New York: E. Horwood for the British Micropalaeontological Society Halsted Press, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Nannofossil Association. Conference, et al. Nannofossils and Their Applications: Proceedings of the International Nannofossil Association Conference, London, 1987. E. Horwood for the British Micropalaeontological Society Halsted Press, 1989.