Cumming, Neil. <br/><br/>
Security :  a guide to security system design and equipment selection and installation / 
Neil Cumming. 
 - 2nd ed. 
 - Boston :  Butterworth-Heinemann,  c1992. 
 - xiv, 338 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>075069033X (case : alk. paper) 
<br/><br/><label>LCCN: </label>93024054     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic security systems--Equipment and supplies.