International Association for Hydraulic Research. Congress, Technische Universität Graz. Institute for Hydraulics and Hydrology, & Abbot, M. N. (1999). Hydraulic engineering for substainable water resources management at the turn of the millenium: International Association for Hydraulic Research, XXVIII Biennial Congress, 22-27 August 1999 in Graz, Austria : proceedings, abstract volume, papers on CD-ROM. Technical University Graz, Institute for Hydraulics and Hydrology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Association for Hydraulic Research. Congress, Technische Universität Graz. Institute for Hydraulics and Hydrology, و M. N. Abbot. Hydraulic Engineering for Substainable Water Resources Management at the Turn of the Millenium: International Association for Hydraulic Research, XXVIII Biennial Congress, 22-27 August 1999 in Graz, Austria : Proceedings, Abstract Volume, Papers on CD-ROM. Graz: Technical University Graz, Institute for Hydraulics and Hydrology, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Association for Hydraulic Research. Congress, et al. Hydraulic Engineering for Substainable Water Resources Management at the Turn of the Millenium: International Association for Hydraulic Research, XXVIII Biennial Congress, 22-27 August 1999 in Graz, Austria : Proceedings, Abstract Volume, Papers on CD-ROM. Technical University Graz, Institute for Hydraulics and Hydrology, 1999.