000 00326nam a2200133Ia 4500
020 _a9788120323087
100 _aJohn W Webb
245 _aProgrammable Logic Controllers:Principles and Applications
250 _a5th
260 _bPHI Learning
_aNew Delhi
_c2012
300 _axv+460
700 _aRonald A Reis
942 _cBK
999 _c57607
_d57607