Airman Knowledge Testing Supplement for Sport Pilot, Recreational Pilot, Remote (Drone) Pilot, and Private Pilot FAA-CT-8080-2H: Flight Training Study & Test Prep Guide (Color Print)
FAA-CT-8080-2H Airman Knowledge Testing Supplement for Sport Pilot, Recreational Pilot, Remote Pilot, and Private Pilot: Geospatial Institute 2021 Edition
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Defining the Limits of Outer Space for Regulatory Purposes (SpringerBriefs in Space Development)
Who Owns Outer Space? (Cambridge Studies in International and Comparative Law, Series Number 176)