Das Unerforschte
Subtitle: die unbekannte Welt, in der wir leben
By: F. L. Boschke.
Edition: 1. Aufl.
Publisher: Econ-Verlag
Published: 1975
Place of publication: Düsseldorf; Wien
Language: ger
Number of pages: 346
Subjects: Earth sciences -- Popular works.; Astronomy -- Popular works.
Notes: Includes index.