000 00425cam a22001217a 4500
008 180718b1972 xxu||||| |||| 00| 0 eng d
082 _aYA6 Op2/15
245 _aTechnology foundation course The man-made world. Units 15-16: analogue computing, control
_cby Open Unviersity
260 _aWalton Hall
_bBlectchley Buckinghamshire, Open Unversity Press
_c1972
300 _a47p.
650 _aComputers
700 _aOpen University
999 _c350977
_d350977