A guide to the collision avoidance rules : international regulations for preventing collisions at sea 
Cockcroft, A. N. 
 - fourth edition. 
 -  Newnes.  1990 
 - 245 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-7506-0522-7 
<br/><br/><label>Dewey Class. No.: </label>M 623.8884 C64g 1990