000
002910000a22001330004500
245
_a
An introduction to cybernetics
100
_a
Ashby, W.R.
260
_a
London
_b
Chapman & Hall
_c
1964
300
_a
295 p.
500
_a
diagrams
080
_a
007
_b
A8
041
_a
EN
942
_c
BK
999
_c
94839
_d
94839