The Rival Rigelians and Planetary Agent X

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Overview:

Title: The Rival Rigelians and Planetary Agent X
Author: Mack Reynolds
Year: 1974
Type: Omnibuses
Series: United Planets

Variant Titles:

1975. Conflict in de Ruimte / Planetair Agent X

Editions/Publications:

Unknown. The Rival Rigelians and Planetary Agent X (Unknown, Mack Reynolds, Ace Books, $0.95, 132+133 pages, Paperback, Omnibus)