Audiovisual aids to instruction / by William Exton Daybreak for our carrier / text by Max Miller ; photogr. by Charles E. Kerlee ; [introd. by Arthur C. Davis] Exchange ship / by Max Hill Introduction to meteorology / by Sverre Petterssen Hilfsbuch der Museumsarbeit / G.R. Hille Der vaderen erf / door J.J. Moerman ; aquarellen van J.W. Heijting Zeppelin in combat : a history of the German Naval Airship Division, 1912-1918 / by Douglas H. Robinson Knowing and drawing trees / written and illustrated by A. Hill Radio engineering / by Frederick Emmons Terman Principles of radar / by members of the staff of the Radar School Massachusetts Institute of Technology Measurements in radio engineering / by Frederick Emmons Terman Communication engineering / by William Littell Everitt
