Douglas, R.P.A. and Geen, G.K. <br/><br/>
The law of Harbours and pilotage 

 - 3rd Ed. 
 -  Lloyds Register of Shipping, London  1989 
 - xviii, 222 
<br/><br/><label>ISBN: </label>1850441685 
<br/><br/><label>Dewey Class. No.: </label>Column-19