TY  - BOOK
AU  - De Berker, Paul.
TI  - Interaction: human groups in community and institution: nine stud ies 
T2  - Problems of society
SN  - 0571093175
U1  - 301.15 DEB 
PY  - 1969///
CY  - Oxford
PB  - Cassirer
KW  - Social groups
ER  -