Letter (Perry Rhodan #989)

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Overview:

1980 . Perry Rhodan, #989: Die Zukunft der Orbiter (1980, various, Pabel-Moewig, DM 1.80, 68 pages, digest, MAGAZINE)
1980 . Perry Rhodan, #755: Die Flucht der Kelosker (1980, various, Pabel-Moewig, DM 1.80, 68 pages, digest, MAGAZINE)
1980 . Perry Rhodan, #392: Das Schiff der grünen Geister (1980, various, Pabel-Moewig, DM 1.80, 68 pages, digest, MAGAZINE)