APA-referens (7:e uppl.)
Sys, C., Vanelslander, T., Ponnekeblom, G., & Crius Group, H. (2011). Future challenges for inland navigation: A scientific appraisal of the consequences of possible strategic and economic developments up to 2030. University Press Antwerp.
Chicago-referens (17:e uppl.)
Sys, Christa, Thierry Vanelslander, Gentbrugge Ponnekeblom, och Hulshout Crius Group. Future Challenges for Inland Navigation: A Scientific Appraisal of the Consequences of Possible Strategic and Economic Developments Up to 2030. Brussels, Belgium: University Press Antwerp, 2011.
MLA-referens (9:e uppl.)
Sys, Christa, et al. Future Challenges for Inland Navigation: A Scientific Appraisal of the Consequences of Possible Strategic and Economic Developments Up to 2030. University Press Antwerp, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.