Invaders from Rigel

From Author Wars - https://authorwars.com/publications/invaders-from-rigel-244125.html

Overview:

Title: Invaders from Rigel
Author: Fletcher Pratt
Year: 1960
Publisher: Avalon Books
Price: $2.95
Pages: 224
Binding: Hardcover
Type: Novel
Title Reference: Invaders from Rigel
Notes:
No statement of printing on copyright page. [Currey] Price from Tuck Publication month from the copyright page of the $0.40 printing of the Airmont edition. OCLC is the source of the artist