Schiavi degli invisibili
From Author Wars - https://authorwars.com/publications/schiavi-degli-invisibili-385633.html
Overview:
- Title: Schiavi degli invisibili
- Author: Eric Frank Russell
- Year: 1978
- Publisher: Editrice Nord
- Price: Lit 3,500
- Pages: vi+220
- Binding: Hardcover
- Type: Novel
- Title Reference: Schiavi degli invisibili
- Notes: Sinister Barrier was translated by Roberta Rambelli as "Schiavi degli invisibili"
Data from http://www.fantascienza.com