000 004370000a22001570004500
245 _aInstrumentation : units 5, 6, 7 : numerical control of machine tools
110 _aThe Open University
260 _aMilton Keynes
_bOpen University Press
_c1974
300 _a71p. : ill., photos.
500 _aA Second Level course
020 _a0335029523
080 _a681.2
_bO6
650 _aINSTRUMENTS
041 _aEN
942 _cBK
999 _c110690
_d110690