Letters (Perry Rhodan #988)

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Overview:

1980 . Perry Rhodan, #988: Duell der Erbfeinde (1980, various, Pabel-Moewig, DM 1.80, 68+xvi pages, digest, MAGAZINE)
1980 . Perry Rhodan, #754: Zwischenspiel auf Rolfth (1980, various, Pabel-Moewig, DM 1.80, 68 pages, digest, MAGAZINE)
1980 . Perry Rhodan, #391: Tödliche Ernte (1980, various, Pabel-Moewig, DM 1.80, 68 pages, digest, MAGAZINE)