Duplo desafio
From Author Wars - https://authorwars.com/books/duplo-desafio-3130255.html
Overview:
- Title: Duplo desafio
- Author: Robert Silverberg
- Year: 1974
- Type: Short Fiction
Editions/Publications:
- Unknown. Rumo à estrela negra (Unknown, Robert Silverberg, Editôra Expressão e Cultura, 230 pages, Trade Paperback, Collection)