slavs of the war zone / W.F. Bailey Air Power in War / by A.H. Narracott ; with a forew. by Arthur Tedder Military policy and national security / edited by William W. Kaufmann ; [préface par Frederick S. Dunn.] ; [contributions par] Gorden A. Craig, Roger Hilsman … Treaties between the Empire of China and foreign powers, together with regulations for the conduct of foreign trade, conventions, agreements, regulations, etc. / edited by … the new observer's series New observer's Book of Aircraft / compiled by William Green ; with silhouettes by Dennis Punnett the new observer’s series New Observer's Book of Aircraft / compiled by William Green ; with silhouettes by Dennis Punnett
