Author: Tullberg, S.A., 1880.:
Title: Om Agnustus-arterna i de Kambriska aflagringarne vid Andrarum. [Sveriges Geol. Unders., Ser. C, 42.]
Description: Stockholm: P.A. Norstedt, 1880. 4to. Pp. [ii],38, many figs. on 2 lithogr. plates, 1 map. New plain wrappers. Waterstain throughout, good otherwise. - PhD thesis, University of Lund.

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