Cosare, Florencio. <br/><br/>
Deck watchkeeping / 
Florencio, Cosare. 
 - revised edition. 
 - v 59 p. ;  23 cm. 
<br/><br/> Bibliography : p 59. 
<br/><br/><label>ISBN: </label>9789710306282 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Merchant marine--Watch duty.