Henrich W. Douglas <br/><br/>
Patrol procedure for private security professionals/ 
Douglas W. Henrich 
 - Toronto:  Prentice Hall,  2001. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0130291455 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Security professionals
<br/><br/><label>LC Class. No.: </label>HV8099 .C3H46 2001