Petruzella, Frank D <br/><br/>
Programmable logic controllers   
by Frank D. Petruzella 
 - 3rd ed. 
 - Boston  Mc GrawHill Higher Education  2005 
 - ix,468p. 
<br/><br/><label>ISBN: </label>0078298520 
<br/><br/><label>Dewey Class. No.: </label>629.89  / P05;1