Symbols and abbreviations used on admiralty charts: Chart 5011. 
 - Third edition. 
 -  The United Kingdom Hydrographic Office.  2005 
 - 75 pages. 
978-0-7077-4048-5
Nautical charts -- Symbols.
M912.0148 Sy6 2007
                        978-0-7077-4048-5
Nautical charts -- Symbols.
M912.0148 Sy6 2007