00353nam a2200133Ia 4500020001800000020001800018082001600036100002000052245003300072250002400105260003100129300000800160650005100168  a9780743468602  a9780684858418  a158.4 COV-P  aStephen R.Covey  aPrinciple Centred Leadership  a1st Edition in 1992  c1999aUKbSIMON & SCHUSTER  a332  aSelf Help, Personality Development, PSYCHOLOGY