Gruhn, Paul. , <br/><br/>
Safety instrumented systems :  design, analysis and justification / 
Paul Gruhn, Harry Cheddie. 
 - 2nd ed. 
 - xii, 306 pages :  illustrations ;  25 cm. 
<br/><br/><label>ISBN: </label>1556179561 9781556179563 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System safety.<br/>Process control.<br/>Industrial safety.
<br/><br/><label>LC Class. No.: </label>TA169.7   / .G78 2006