Professional mariner :  journal of the maritime industry. 

 - Portland, ME :  Navigator Pub. Corp.,  c1993- 
 - v. 
 - Bimonthly 
 - Issue #1- 
<br/><br/> Title from cover. 
<br/><br/><label>ISSN: </label>1066-2774 
 = Professional mariner 
 = Prof. mar. 
<br/><br/><label>LCCN: </label>sn 92005317 
<br/><br/><label>Dewey Class. No.: </label>623