Danmarks geologiske undersøgelse.

Issues for -1979 have English title: Geological Survey of Denmark. 1. series.Part of the illustrative material is folded, part colored; some maps and colored profiles folded in pockets; Some of the plates accompanied by guard sheets with descriptive letterpress; some maps accompanied by transparent leaves (part colored) with outline drawing.Includes bibliographies.Nr. 2 published in 1897.Nr. 1 of this series is a supplement to: Danmarks geologiske undersøgelse (Series), Nr. 1.Mode of access: Internet.Nr. 3 of Danmarks geologiske undersøgelse (Series) retroactively renumbered as Nr. 1 of this series