"TECHNOLOGY & ENGINEERING / Military Science" . . . . . . "Safety of marine transport : marine navigation and safety of sea transportation"@en . . . . . . . . "Electronic books"@en . . "Electronics in navigation." . . "Shipping Safety measures." . . . . "Aids to navigation." . . "Shipping Technological innovations." . . "Nautical Institute (Great Britain)" . . "Nautical instruments." . .