Bertcher, Harvey J. <br/><br/>
Group participation :  techniques for leaders and members / 
Harvey J. Bertcher.. 
 - 2nd ed. 
 - Thousand Oaks, Calif. ;  London :  Sage,  c1994. 
 - xii,197p ;  22 cm. 
 - Sage human services guides ;  v. 10 .
<br/><br/> Previous ed.: 1979. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0803952139  £13.95 0803952147 (pbk.) 9780803952133 9780803952140 
<br/><br/><label>Nat. Bib. No.: </label>GB9415059  bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Small groups.<br/>Social groups.<br/>Social participation.<br/>Leadership.
<br/><br/><label>Subjects--Index Terms: </label>Group dynamics