Die schwarzen Höhlen des Mondes
From Author Wars - https://authorwars.com/books/die-schwarzen-hohlen-des-mondes-1720166.html
Overview:
- Title: Die schwarzen Höhlen des Mondes
- Author: Robert A. Heinlein
- Year: 1956
- Type: Short Fiction
Editions/Publications:
- 1956 . Utopia-Sonderband, #2 (1956, Robert A. Heinlein, Pabel, DM 1.50, 128 pages, digest, MAGAZINE)