Search Results       Your search for [subject]United States -- Navy -- Communications systems returned 1 record.           The ELF odyssey: national security versus environmental protection. by Klessig, Lowell L; Boulder, Colorado: Westview Press, 1980. Subject: Environmental protection -- United States -- Citizen Participation -- Case studies; Radio, Extremely low frequency; Technology -- Social aspects -- United States; United States -- Navy -- Communications systems.          Add to Book Cart Relevance: 25.25%