TY  - BOOK
AU  - Collins Lyndhurst Ed
TI  - Use of models in the social sciences
T2  - Social issues in the seventies ed by J.N. Wolfe; 4
U1  - Delta:(B), L6--;1 (RR) 
PY  - 1976///
CY  - London
PB  - Tavistock       
KW  - SOCIAL SCIENCES
ER  -