Foraminifera source request

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Hartmann-Schröder, Gesa; Duff, Alexandra [editor]; Kingston, Paul [editor]; Ingold, Maggie [translator]; Riddle, Martin [translator]. (1987). Key to polychaete annelids from the North Sea and Baltic approaches. A translation of the keys contained in Die Tierwelt Deutschland's und angrenzender Meeresteile, Annelida. Borstenwürmer, Polychaeta [1971] by Dr. Gesa Hartmann-Schroder. [booklet]. 63pp. Institute of Offshore Engineering, Heriot-Watt University, Edinburgh.