Lippitt, Ronald Watson, Jeanne Westley, Bruce <br/><br/>
Dynamics of planned change  a comparative study of principles and techniques 

 - New York  Harcourt, Brace and world, inc.  1958 
 - viii, 312p.; 22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diagonising external relationship problems<br/>Scientific and professional training of change agents<br/>Social change<br/>Social development<br/>Social planning