Livingstone, George H.  <br/><br/>
Tug use offshore in bays and rivers : the Towmaster's Manual :   including the new certification standards as required by the USCG /  
George H Livingstone and Grant H Livingstone 
 - London :    The Nautical Institute,   2006.  
 - xiv, 171 p. :   ill. ;   28 cm.  
<br/><br/><label>ISBN: </label>1870077741 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine towing. <br/>Rivers. <br/>Tugboats. 
<br/><br/><label>Dewey Class. No.: </label>387.166  / LIV