TY  - BOOK
AU  - Klein Alan F
TI  - Effective groupwork :  An introduction to principle   
SN  - 0809618451
U1  - S8, L2 
PY  - 1972///
CY  - New York
PB  - Association Press USA       
KW  - Psychology
N1  - Bib at the end of each chapter
ER  -