Author: BOLSENKÖTTER, H. (et al.).:
Title: 100 Jahre Geologischer Staatsdienst in Nordrhein-Westfalen, 1873-1973. [Fortschr. Geol. Rheinl. Westf., 23.]
Description: Krefeld 1973. 8vo, 24cm. PP. vi,305, 11 plates and maps (some col.), 3 tabs., 34 illustr. in text, refs., indices. Hardbound, orig. printed laminated boards. Very good.

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