European Association for Research and Development in Higher Education. International Congress (5th: 1987 : Utrecht, Netherlands). (1989). Higher education and new technologies: Proceedings of the 5th Congress of the European Association for Research and Development in Higher Education (EARDHE) & the Dutch Ass'n for Research and Development in Higher Education(CRWO), April 22-25, 1987. Pergamon Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)European Association for Research and Development in Higher Education. International Congress (5th: 1987 : Utrecht, Netherlands). Higher Education and New Technologies: Proceedings of the 5th Congress of the European Association for Research and Development in Higher Education (EARDHE) & the Dutch Ass'n for Research and Development in Higher Education(CRWO), April 22-25, 1987. Oxford: Pergamon Press, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)European Association for Research and Development in Higher Education. International Congress (5th: 1987 : Utrecht, Netherlands). Higher Education and New Technologies: Proceedings of the 5th Congress of the European Association for Research and Development in Higher Education (EARDHE) & the Dutch Ass'n for Research and Development in Higher Education(CRWO), April 22-25, 1987. Pergamon Press, 1989.