@book{30864,
	author = {Petruzella, Frank D.},
	title = {Programmable logic controllers /},
	publisher = {McGraw-Hill,},
	year = {2005},
	address = {New York:},
	edition = {3rd ed.},
	note = {May be used with Frank D. Petruzella's Activities manual for Programmable logic controllers, 2nd ed. (TK787.P76 P47 1998 Activities manual)}
}