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 - California:  Bobit Business Media,  February 2016. 
 - page 52-54:  26.8 cm 
 - mothly 
 - Volume 40, Number 2 (February 2016) 
 - Police: The Law Enforcement Magazine .
 - Police: The Law Enforcement Magazine  Volume 40, number 2  0839-8989. .
<br/><br/><label>ISSN: </label>0839-8989 
<br/><br/><label>Dewey Class. No.: </label>BPer. 363.208