Hensen, Henk,  1935- <br/><br/>
Tug use in port :  a practical guide / 
Henk Hensen. 
 - 2nd ed. 
 - London :  Nautical Institute,  2003. 
 - xiii, 192 p. :  ill. ;  30 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1870077393 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tugboats.
<br/><br/><label>Dewey Class. No.: </label>623.8232