- Author: Oskar Karstedt (editor), Peter Werder (editor), Erich Obst (editor)
- Language: German
- Year: 1941
- Author: Geo A. Schmidt (editor), Erich Obst (editor)
- Language: German
- Year: 1942
- Author: Peter Mühlens (editor), Erich Obst (editor)
- Language: German
- Year: 1943
- Author: Herbert Theodor Becker (editor), Erich Obst (editor)
- Language: German
- Year: 2019
- Author: Robert Ostertag (editor), Gerhard Kulenkampff (editor), Erich Obst (editor)
- Language: German
- Year: 1941
- Author: Ursula Feyer (editor), Erich Obst (editor)
- Language: German
- Year: 1943
- Author: Adolf Ludin (editor), Eugen Thoma (editor), Erich Obst (editor)
- Language: German
- Year: 1943
Der geologische Bau die nutzbaren Lagerstätten und die Bergwirtschaft Afrikas: Teil 2 Westafrika
pdf
- Author: Erich Obst (editor), Werner Beetz (editor)
- Language: German
- Year: 1900
Der geologische Bau die nutzbaren Lagerstätten und die Bergwirtschaft Afrikas: Teil 1 Nordafrika
pdf
- Author: Erich Obst (editor), Fritz Behrend (editor)
- Language: German
- Year: 1942