Scope of Soviet activity in the United States.
Subtitle: Hearing before the Subcommittee to Investigate the Administration of the Internal Security Act and Other Internal Security Laws of the Committee on the Judiciary, United States Senate, Eighty-fourth Congress, second session[-Eighty-fifth Congress, first session] ...
Publisher: U.S. Govt. Print. Off.
Published: 1956
Place of publication: Washington
Subjects: Communism -- United States; Subversive activities -- United States; Internal security -- United States; Espionage, Russian -- United States