Um Sistema Não-P

From Author Wars - https://authorwars.com/books/um-sistema-nao-p-2711527.html

Overview:

Title: Um Sistema Não-P
Author: William Tenn
Year: 1977
Type: Short Fiction

Editions/Publications:

Unknown. Pesadelo Galáctico - antologia de histórias espantosas (Unknown, William Tenn, Editora Nova Críctica, 188 pages, Paperback, Anthology)