L'ennemi invisible
From Author Wars - https://authorwars.com/publications/lennemi-invisible-632533.html
Overview:
- Title: L'ennemi invisible
- Author: Henri Vernes
- Year: 1969
- Publisher: Marabout
- Binding: Paperback
- Type: Novel
- Title Reference: L'ennemi invisible
- Notes:
- "69/N° 52" on bc, so possibly December 1969.
- No ISBN.
- No price on book.
- Cover art credit on copyright page.
- Interior art by Henri Lievens.