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Near midair collisions hearing before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-fourth Congress, first session, December 16, 1975
- "Near midair collisions : hearing before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-fourth Congress, first session, December 16, 1975"
- "Near midair collisions hearing before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-fourth Congress, first session, December 16, 1975"@en