Ingénieurs du cosmos

From Author Wars - https://authorwars.com/publications/ingenieurs-du-cosmos-534809.html

Overview:

Title: Ingénieurs du cosmos
Author: Clifford Simack
Year: 1967
Publisher: Eric Losfeld
Pages: 235
Binding: Paperback
Type: Novel
Title Reference: Ingénieurs du cosmos
Notes: Probable first printing (DL = 2nd trimester 1967).
No price nor ISBN on book.
Artist not credited.
Translated by Jeanine & Michel Ciment.
Note multiple mispellings : author given as "Clifford Simack" (sic) on title page and Simak on cover and spine, title given as _Les ingénieurs du cosmos_ on cover and spine.
Publisher can also be read as "Le dernier terrain vague".