TY  - BOOK
AU  - Hanken,A.F.G.
TI  - Cybernetics and society: an analysis of social systems 
SN  - 0856261688
U1  - 301/.0724 19
PY  - 1981///
CY  - Tunbridge Wells [Eng.]
PB  - Abacus Press
KW  - Social sciences
KW  - Mathematical models
ER  -