00447nam a22001697a 4500 153475 153475 OSt 20190905123525.0 181121b xxu||||| |||| 00| 0 eng d NPTS 031 HAL 800 Halsey, William D. ed. Collier's Encyclopedia USA The Crowell Collier Publishing Company 1964 761p 801 Electron Gun to Fischer Vol 9 ddc REF 0 0 ddc 0 0 REF NPTS NPTS REF 2018-11-21 Vol 9 0 031 HAL NPTS006379 2018-11-21 00:00:00 2018-11-21 REF