Quem está aí?
From Author Wars - https://authorwars.com/books/quem-esta-ai-2788981.html
Overview:
- Title: Quem está aí?
- Author: Arthur C. Clarke
- Year: 1978
- Type: Short Fiction
Editions/Publications:
- Unknown. Histórias de dez mundos (Unknown, Arthur C. Clarke, Nova Fronteira, 184 pages, unknown, Collection)