Johnson, David W.,  1940- <br/><br/>
Joining together :  group theory and group skills / 
David W. Johnson, Frank P. Jonhson. 
 - 5th ed. 
 - Boston :  Allyn and Bacon,  1994. 
 - 609 p. ;  24 cm. 
<br/><br/>Includes index and bibliography : p. 571-592. 
<br/><br/><label>ISBN: </label>0205158463 9780205158461  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social groups.<br/>Leadership.<br/>Group relations training.