Planètes à vendre

From Author Wars - https://authorwars.com/publications/planetes-a-vendre-329087.html

Overview:

Title: Planètes à vendre
Author: A. E. van Vogt
Year: 1978
ISBN-10: 2702407099
Publisher: Librairie des Champs-Élysées
Pages: 286
Binding: Paperback
Type: Novel
Title Reference: Planètes à vendre
Notes: Unknown printing rank (no AI, DL = 1st trimester 1978, probable 1st). No price on book. Artist credited in this pub. Note that the book is credited to van Vogt alone and that back cover implies that the text is from the 70s.