(1989). Ammonites from the Early Campanian Vaals Formation at the CPL Quarry (Haccourt, Liège, Belgium) and their stratigraphic implications: On-shore carboniferous palynology of the Netherlands.
Chicago-Zitierstil (17. Ausg.)Ammonites from the Early Campanian Vaals Formation at the CPL Quarry (Haccourt, Liège, Belgium) and Their Stratigraphic Implications: On-shore Carboniferous Palynology of the Netherlands. Haarlem, 1989.
MLA-Zitierstil (9. Ausg.)Ammonites from the Early Campanian Vaals Formation at the CPL Quarry (Haccourt, Liège, Belgium) and Their Stratigraphic Implications: On-shore Carboniferous Palynology of the Netherlands. 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.