Johnson, David W.,  1940- <br/><br/>
Joining together :  group theory and group skills / 
by David W. Johnson and Frank P. Johnson. 
 - 2nd ed. 
 - Englewood Cliffs, N.J. :  Prentice-Hall ,  1982. 
 - 510 p. ;  23 cm. 
<br/><br/> First published: 1975. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0135103967 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social groups.<br/>Leadership.<br/>Group relations training.