Hilfsbuch der Museumsarbeit / G.R. Hille Der vaderen erf / door J.J. Moerman ; aquarellen van J.W. Heijting Radio engineering / by Frederick Emmons Terman Measurements in radio engineering / by Frederick Emmons Terman Communication engineering / by William Littell Everitt Knowing and drawing trees / A. Hill : 1 Knowing and drawing trees / A. Hill : 2 Zeppelin in combat : a history of the German Naval Airship Division, 1912-1918 / by Douglas H. Robinson blue helmets under fire : fifty years of United Nations peacekeeping missions / Samuel M. Katz and Yves Debay ; editor: James R. Hill Air operations by air defence of Great-Britain and fighter command in connection with the German flying bomb and rocket offensives, 1944-1945 / by Roderic Hill Radio engineering handbook / ed. by Keith Henney, editor-in-chief Mobilizing resources for war : the economic alternatives / Tibor Scitovsky, Edward Shaw, Lorie Tarshis
