000 00415nam a22001697a 4500
003 NUST - PNEC
005 20170116181128.0
008 151006b xxu||||| |||| 00| 0 eng d
040 _cLIBRARY
082 _a621.09 OBR
100 _913787
_aO'Brien, Robert
245 _aMachines
_cRobert O'Brien
250 _a2nd ed.
260 _cc1980
650 _913788
_aTechnological innovations
_xME
942 _2ddc
_cBK
999 _c69831
_d69831