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Civil defense program : hearings before the Subcommittee on Civil Defense of the Committee on Armed Services, United States Senate, Eighty-fourth Congress, first session, on operations and policies of the civil defense program
- "Civil defense program : hearings before the Subcommittee on Civil Defense of the Committee on Armed Services, United States Senate, Eighty-fourth Congress, first session, on operations and policies of the civil defense program"@en
- "Civil defense program hearings before the Subcommittee on Civil Defense of the Committee on Armed Services, United States Senate, Eighty-fourth Congress, first session, on operations and policies of the civil defense program"@en