00381nam a2200109Ia 450000500170000000800410001705000170005810000210007524501050009626000390020165000310024020251229184041.0251229s9999    xx            000 0 und d  aHM 101 .L57   aLippitt, Ronald  4aThe dynamics of planned change b a comparative study of principles and techniquess cRonald Lippitt  aNew Yorkb HarcourtcBrace & World  aSocial Change - Leadership