Rules regulating the grads of certificate for the men in command of various classes of steam vessels.   
 File No.  5L-1/45 

 -  1945 
 - 38 P.  H-35 cm; W-22 cm 
<br/><br/> সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) <br/><br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>steam