Gepard : the history of German anti-aircraft tanks / Walter J. Spielberger ; [drawings by Hilary L. Doyle] Provisional notes on the 30 m/m Aden aircraft gun / comp. by Armament design establishment treaty series Exchange of notes between the government of the United Kingdom of Great Britain and Northern Ireland and the Government of the United States of America … i.c.a.o. circular aircraft landing system utilizing decimetric waves (UHF) / published by authority of the Secretary General ; International Civil Avaiation Organization Aircraft camouflage and markings 1907-1954 / written and comp. by Bruce Robertson ; paintings by William F. Hepworth ; prod. by D.A. Russell command papers Exchange of notes between the government of the United Kingdom of Great Britain and Northern Ireland and the Government of Portugal concerning the Extension for …