Lem a KGB ügynöke volt?

From Author Wars - https://authorwars.com/books/lem-a-kgb-ugynoke-volt-1543322.html

Overview:

Title: Lem a KGB ügynöke volt?
Author: Lech Jęczmyk
Year: 1992
Type: Essays

Variant Titles:

1992. Lem a KGB ügynöke volt?