00506nam a2200145 a 450000500170000000800410001710000200005824501050007826000310018330000290021444000420024350000200028565000440030585200110034920191218055608.0090430s19uu    xx            00    eng d10aBirch, Beverley10aGuglielmo Marconi :bThe story of radio and how it made the world a smaller place /cBeverley Birch.0 aHerts :bExley Pub,c1990.  a64 p. : ill. (part col.) 0aScientists who have changed the world  aIncludes index.  aMarconi, Guglielmo, Marchese, 1874-1937  7OLOPSC