International Perimetric Society. Meeting, ebrary, Inc, Henson, D. B., & Wall, M. (2004). Perimetry update 2002/2003: Proceedings of the XVth International Perimetric Society Meeting, Stratford-upon-Avon, England, June 26-29, 2002. Kugler Publications.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Perimetric Society. Meeting, Inc ebrary, David B. Henson, و Michael Wall. Perimetry Update 2002/2003: Proceedings of the XVth International Perimetric Society Meeting, Stratford-upon-Avon, England, June 26-29, 2002. The Hauge: Kugler Publications, 2004.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Perimetric Society. Meeting, et al. Perimetry Update 2002/2003: Proceedings of the XVth International Perimetric Society Meeting, Stratford-upon-Avon, England, June 26-29, 2002. Kugler Publications, 2004.