The nautical almanac 2012 :  Her majesty's nautical almanac office / 
The United Kingdom Hydrographic Office. 
 - United Kingdom :  The United Kingdom Hydrographic Office,  2011. 
 - xxxv, 319 pages :  illustrations, tables, maps ;  30 cm. 
<br/><br/><label>ISBN: </label>9780707741222 
<br/><br/><label>Dewey Class. No.: </label>528  / A1