A sexta coluna

From Author Wars - https://authorwars.com/books/a-sexta-coluna-1378141.html

Overview:

Title: A sexta coluna
Author: Robert Heinlein
Year: 1955
Type: Novels

Editions/Publications:

Unknown. A sexta coluna (Unknown, Robert Heinlein, Livros do Brasil, 220 pages, Paperback, Novel)