La puerta del tiempo
From Author Wars - https://authorwars.com/books/la-puerta-del-tiempo-2684729.html
Overview:
- Title: La puerta del tiempo
- Author: Robert A. Heinlein
- Year: 1964
- Type: Short Fiction
Editions/Publications:
- Unknown. La puerta del tiempo (Unknown, Robert A. Heinlein, Vértice, 218 pages, Paperback, Collection)