00273nam a2200121Ia 4500008004100000100001600041245003500057260001500092300000900107650001300116942000700129999001500136190216s9999||||xx |||||||||||||| ||und||  aErnest Dale 0aManagement Theory And Practice  bNullc1965  a656p  aCommerce  cBK  c4034d4034