Police system reviewer / 
Delos Santos, Victor O. 
 - Quezon City :  Wiseman's Book Trading, Inc.,  2012. 
 - ix, 127 p.;  22.1cm. 
<br/><br/>Includes references 
<br/><br/><label>ISBN: </label>9789710588381 
<br/><br/><label>Dewey Class. No.: </label>Fil 363.307 D384 2012