TY  - BOOK
AU  - Bertcher,Harvey J
TI  - Group participation: techniques for leaders and members 
PY  - 1979///
CY  - Newbury Park, CA
PB  - Sage Pub
KW  - Small groups
KW  - Social groups
KW  - Social participation
KW  - Leadership
N1  - Includes references
ER  -