The minimum requirement of professional capacity in the case of captains, navigating and engineer officers in charge of watches on board merchant ships.  Fourth item on the agenda. 

 - Geneva,  International labour office,  1931. 
 - 106 p., 1 l.  22 cm. 
<br/><br/> At head of title: Second discussion. Report IV. International labour conference. 
<br/><br/><label>LCCN: </label>l  31000087  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ships--Manning.<br/>Maritime law.
<br/><br/><label>LC Class. No.: </label>VK221  / .I55 1931 
<br/><br/><label>Dewey Class. No.: </label>656