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Books about Grigulevich:
El secreto encanto de la KGB/ The Secret Charm of the KGB: Las cinco vidas de Iosif Grigulievich/ The Five Lives... by Marjorie Ross (Dec 30, 2006)
Iosif Grigulevich. Razvedchik, "kotoromu vezlo" by Nil Nikandrov (2006)
Chekisty Stalina: Viktor Abakumov. Iosif Grigulevich. Naum Eitington. Pavel Sudoplatov [Stalin's Chekists] by V.N., Kisilev, A.V., Sharapov, E.P Stepankov (2006)
Wiki information Grigulevich:
Iosif Romualdovich Grigulevich was a Soviet illegal operative during the 1930s and 1940s, when he took a leading role in assassinating leftists who were not loyal to Joseph Stalin. Under a false identity as Teodoro B. Castro, a wealthy Costa Rican...