Hemphill, Charles F. <br/><br/>
Modern security methods / 
Charles F. Hemphill, Jr. 
 - Englewood Cliffs, N. J. :  Prentice-Hall,  1979. 
 - xvii, 300 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0130692034 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industry--Security measures.<br/>Retail trade--Security measures.<br/>Electronic data processing departments--Security measures.