00789nam a2200229 a 450000100060000000300080000600500170001400800410003103500190007204000350009104100080012608200290013411000660016324501390022925000120036826000450038030000260042550400290045150500180048065000210049870000400051966975BD-RjUL20211209081612.0170321s1947    nyua     b    001 0 eng d  a(BD-RjUL)67106  cBD-RjULdBD-RjULbengaBD-RjUL  aeng  a621.384151223bUNV 19471 aUnited StatesbRadio Research Laboratory, Harvard University.10aVery high-frequency techniques /cRadio Research Laboratory, Harvard University; Editorial Direction of Herbert J. Reich ... [et. all]  a1st ed.  aNew York :bMcGraw-Hill Book Co.,c1947.  a v. :bill. ;c24 cm.  aIncludes bibliographies.0 aVol.1 --v.1-- 0aShortwave radio.1 aReich, Herbert Joseph,d1900-,ced.