Petruzella, Frank D. <br/><br/>
Activities manual to accompany programmable logic controllers / 
Frank D. Petruzella 
 - 4th ed. 
 - New York, NY :  McGraw-Hill Higher Education,  c2011 
 - ix, 358 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>9780073303420 0073303429 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers--Problems, exercises, etc.<br/>Sequence controllers, Programmable<br/>Combinational circuits<br/>Commands (Logic)<br/>Computable functions