Wijeyaratne, V.D.K <br/><br/>
An Introduction to industrial security 
<label>/ by </label> Wijeyaratne, V.D.K 
 - Colombo  Lake House Investments  1985 
 - [10], 79p.  22 cm. 
<br/><br/><label>Dewey Class. No.: </label>658.47  / WIJ