El planeta gris
From Author Wars - https://authorwars.com/publications/el-planeta-gris-553059.html
Overview:
- Title: El planeta gris
- Author: Alan E. Nourse
- Year: 1961
- Publisher: Cenit
- Pages: 234
- Binding: Paperback
- Type: Novel
- Title Reference: El planeta gris
- Notes: Data from WorldCat/OCLC
Cover copied from here