TY  - BOOK
AU  - Agazarian Yvonne
AU  -  Peters Richard
TI  - Visible and invisible group : Two perspectives on group psychotherapy and group process
T2  - International Library of Group Psychotherapy and Group Process. Ed by Malcolm Pines and Eaxl Hopper
U1  - S;843, M1 
PY  - 1981///
CY  - London
PB  - Routledge and Kegan Paul    
ER  -