Voorthuysen, J. H. van. (1951). Recent (and derived Upper Cretaceous) Foraminifera of the Netherlands Wadden Sea (tidal flats). Med. geol. Sticht. (n.s.) 5: 23-30.
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Voorthuysen, J. H. van
1951
Recent (and derived Upper Cretaceous) Foraminifera of the Netherlands Wadden Sea (tidal flats).