Haltet den Wald sauber!

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Overview:

Title: Haltet den Wald sauber!
Author: Peter Blaas
Year: 1977
Type: Short Fiction

Editions/Publications:

1977 . Perry Rhodan, #851: Kosmischer Alptraum (1977, Peter Blaas, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
1977 . Perry Rhodan, #617: Der Kampf um die Positronik (1977, Peter Blaas, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)