set of nautical tables for general navigational purposes / S.M. Burton treaty series Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the United States of America concerning the … air publications Air navigation / publ. for information and guidance of all concerned by Command of the Air Council Hughes' tables for sea and air navigation / compiled by L.J. Comrie Air navigation : British empire edition / by P.V.H. Weems ; ed. by Arthur J. Hughes and P.F. Everitt
