00536nam a2200145 a 450000500170000000800410001710000190005824501400007726000320021730000300024944000420027950000200032165000380034185200110037920191218055530.0090415s19uu    xx            00    eng d10aBirch, Beverly10aAlexander Fleming :bthe bacteriologist who discovered penicillin - the miracle drug that has saved millions of lives /cBeverly Birch.0 aHerts :bExley Pub,cc1990.  a64 p. : chiefly col. ill. 0aScientists who have changed the world  aIncludes index.  aFleming, Sir Alexander, 1881-1955  7OLOPSC