Skybird : het verhaal rond een vliegtuigdrama / Cor Vos publication de la commission géodésique néerlandaise Gravity expeditions at sea, 1923-1930 / F.A. Vening Meinesz : Vol. 2: Report of the gravity expedition in the Atlantic of 1932 and the interpretation … battle of the Atlantic : the official account of the fight against the U-boats 1939-1945 / prep. for the Admiralty and the Air Ministery by …
