Letter (Perry Rhodan #660)
From Author Wars - https://authorwars.com/books/letter-perry-rhodan-660-1774585.html
Editions/Publications:
- 1974 . Perry Rhodan, #660: Operation Bumerang (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #426: Das Ding auf dem Mond (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #63: Die Mikro-Techniker (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)