MARC全文
0200084247 20060411134639.0 s1974 be f fr |100|||eng | NGL ec----- a580.8 Becker, G. Stratigraphic significance of sillicified foraminifera in the upper Devonian of central Europe / G. Becker. Brussels : Geolo. Surv. of Belgium, 1974. 14 p. International Symposium on Belgian Micropaleontological Limits from Emsian to Visean, Sep. 1-10, 1974, publication no.11. NGL 580.8 G29 v11 afqy b efqy0604