Bertcher, Harvey J. <br/><br/>
Group participation : techniques for leaders and members 
Harvey J. Bertcher 
 -  Sage Beverly Hills  1979  1979 
 - 179p. ; 22 cm. 
 - A sage human services guide     .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Small groups<br/>Social groups<br/>Social participation<br/>Leadership--HM
<br/><br/><label>LC Class. No.: </label>HM133.B483