00335nam a2200121Ia 4500008004100000082002100041100002000062245002600082250000900108260004500117300000800162650004300170150614s9999    xx            000 0 und d  a658.092  DRU - E  aPETER F DRUCKER  aTHE ESSENTIAL DRUCKER  a1 ED  bElsevier  Computer Science Libraryc2008  a358  aTHE ESSENTIAL DRUCKER  PETER F DRUCKER