La storia segreta del KGB - Andrew, Christopher. (OLS)http://semarc/name/78452; Manna, Gabriella. (OLS)http://semarc/name/78454; Spinelli, Piero. (OLS)http://semarc/name/43134; Gordievskij, Oleg. (OLS)http://semarc/name/78453 (Rizzoli,, 1991)
Keywords: Russia - Storia - Sec. 20. (OLS)http://semarc/subject/2386