Por la duración
From Author Wars - https://authorwars.com/books/por-la-duracion-3135879.html
Overview:
- Title: Por la duración
- Author: Poul Anderson
- Year: 1963
- Type: Short Fiction
Editions/Publications:
- Unknown. Extranjeros en la Tierra (Unknown, Poul Anderson, E.D.H.A.S.A., 237 pages, Paperback, Collection)