TY  - BOOK
AU  - Balgopal,Pallassana R.
AU  - Vassil,Thomas V.
TI  - Groups in social work : : an ecological perspective / 
SN  - 0023055308
U1  - 361.4 BAL 
PY  - 1983///
CY  - New York : 
PB  - Macmillan, 
KW  - Social group work
N1  -  Includes bibliographical references and index
ER  -