Letter (Perry Rhodan #663)
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Editions/Publications:
- 1974 . Perry Rhodan, #663: Leticron, der Überschwere (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #429: Das Land der blauen Türme (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #66: Wächter der Verbannten (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)