00485nam a22001697a 4500 12786 12786 250529b 2006 ||||| |||| 00| 0 eng d 1856093220 387.5 WIT A Witherby Seamanship Publication Passage planning principles London A Witherby Seamanship Publication 2006 viii, 60p. Passage Planning with ECDIS Planning Toolbox Monitoring Techniques BK 0 0 ddc 0 387_500000000000000_WIT 0 REF 16050 MU MU GEN 2025-05-29 387.5 WIT MPC6960 2025-05-29 BK Column - 4