The upper Campanian lower Maastrichtian chalks of the Mons basin, Belgium - a preliminary study of Belemnites and Foraminifera in the Harmignies and Ciply areas
Robaszynski, F.; Christensen, W.K. (1989). The upper Campanian lower Maastrichtian chalks of the Mons basin, Belgium - a preliminary study of Belemnites and Foraminifera in the Harmignies and Ciply areas. Geol. Mijnbouw 68(4): 391-408
In: Geologie en Mijnbouw. Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap: The Netherlands. ISSN 0016-7746; e-ISSN 1573-9708, more