Geheimnis der Wüste = Mystery on the desert = Secreto de la pampa.
Edition: 2. Aufl.
Publisher: [the author]
Published: 1976
Place of publication: Stuttgart
Language: ger
Number of pages: 92
Notes: Preliminaries for a scientific interpretation of the prehistoric ground-drawings of Nazca, Peru and introduction to their study.

Text in German, English and Spanish.