Morris, S. Brian.
Programmable logic controllers. - New Jersey : PENT, 2000. - index, 735p. ; cm.
0130955655
Programmable Controllers.
TJ217.5.M883
Programmable logic controllers. - New Jersey : PENT, 2000. - index, 735p. ; cm.
0130955655
Programmable Controllers.
TJ217.5.M883