United States. Congress. Senate. Committee on Government Operations. Permanent Subcommittee on Investigations. (19541955). Subversion and Espionage in Defense Establishments and Industry.: hearings before the United States Senate Committee on Government Operations, Permanent Subcommittee on Investigations. Washington: U.S. G.P.O..MLA Citation
United States. Congress. Senate. Committee on Government Operations. Permanent Subcommittee on Investigations. Subversion And Espionage In Defense Establishments And Industry.: Hearings Before the United States Senate Committee On Government Operations, Permanent Subcommittee On Investigations. Washington: U.S. G.P.O., 19541955.
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