00294nam a2200109Ia 4500008005200000082001600052100001700068245002700085250001200112260004700124300001300171200103s 1989 ||||xx |||||||||||||| ||und|| a623.87bCLA aClarke, J.P. 4aThe mariner's handbook a7th Ed. bThe Hydrographer of the Navyc1989aLondon ax, 235p.