The SF of J. H. Rosny the Elder

From Author Wars - https://authorwars.com/books/the-sf-of-j-h-rosny-the-elder-2672095.html

Overview:

Title: The SF of J. H. Rosny the Elder
Author: Jean-Pierre Vernier
Year: 1975
Type: Essays

Variant Titles:

1978. Die Science-fiction von J. H. Rosny dem Älteren