development of mathematics / by Eric T. Bell Materials handbook : an encyclopedia for purchasing agents, engineers, executives, and foremen / George S. Brady Electronics / by Jacob Millman and Samuel Seely mckinsey foundation lecture series uncommon man : the individual in the organization / Crawford H. Greenewalt studies in social life rescue and achievement of refugee scholars : the story of displaced scholars and scientists 1933-1952 / Norman Bentwich ; [avec introduction de William Henry Lord … great organizers / Ernest Dale 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 Indian Army Uniforms under the British from the 18th century to 1947 : cavalry / W.Y. Carman Chemical warfare / by Amos A. Fries and Clarence J. West