Detrás de las estrellas

From Author Wars - https://authorwars.com/publications/detras-de-las-estrellas-553050.html

Overview:

Title: Detrás de las estrellas
Author: Charles L. Fontenay
Year: 1961
Publisher: Cenit
Pages: 238
Binding: Paperback
Type: Novel
Title Reference: Detrás de las estrellas
Notes: Cover "inspired" by this one