Vacuum-tube circuits / by Lawrence Baker Arguimbau Bericht über einen Aufenthalt in den Vereinigten Staaten mit besonderer Berücksichtigung der Straf- und Erziehungsanstalten / von Hans Kellerhals u.s. army training manual Studies in citizenship for recruits / War Department , Adjutant General Office War Department decimal file system : a subjective decimal classification with a complete alphabetical index for use of the war department and the United States … the life of science library Sons of science : the story of the Smithsonian Institution and its leaders / Paul H. Oehser Tele-communication engineers' instrument manual / by Paul H. Hunter aircam aviation series Sharkmouth 1945-1970 / ill. and comp. by Richard Ward miscellaneous publications Microbiological deterioration of organic materials : it's prevention and methods of test / by Edward Abrams century of achievement : a story of one hundred years of arms making in recognition of the Colt company's 100th anniversary: 1836 - 1936 / … USS carilloy steels Formulas for stress and strain / Raymond J. Roark Yankee in denken en doen : karakterteekening van het Amerikaansche leven / door M. C. van Mourik Broekman