Dev, Bal Krishan  <br/><br/>
Effective shipping and port management / 
Bal Krishan Dev 
 - New Delhi :   Pinakin Publishing,   2025. 
 - 293p.: 
<br/><br/><label>ISBN: </label>9789395449441 
<br/><br/><label>Dewey Class. No.: </label>658.562Log   DEV/E