Natuurhistorisch Maandblad

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Natuurhistorisch Genootschap Limburg

J. Hofker. (1965). Foraminifera from the cretaceous of South-Limburg, Netherlands, LXXX: Polymorphinidae from the holes in the hard ground covering the Md in the quarry Curfs near Houthem, South-Limburg. Natuurhistorisch Maandblad, 54(9), 111–117.