. . . . . . . . . . "North Sea canal of Holland and improvement of navigation from Rotterdam to the sea" . . . . . . . . . . . . . . . "Report on the North Sea canal of Holland; and on the improvement of navigation from Rotterdam to the sea; to the chief of engineers, United States army" . "Report on the North Sea canal of Holland and on the improvement of navigation from Rotterdam to the sea" . . . "Report on the North Sea Canal of Holland" . . . . . . . . "Report on the North Sea canal of Holland; and on the improvement of navigation from Rotterdam to the sea"@en . "Report on the North Sea canal of Holland; and on the improvement of navigation from Rotterdam to the sea" . . "Report on the North Sea canal of Holland ; and on the improvement of navigation from Rotterdam to the Sea" . . . . "Plannen (vorm)" . . . "Report on the North Sea canal of Holland and on the improvement of navigation from Rotterdam to the sea; to the chief of engineers, United States army" . "Report on the North Sea canal of Holland and on the improvement of navigation from Rotterdam to the sea; to the chief of engineers, United States army"@en . "Inland navigation Netherlands." . . "Navegacao interior." . . "Inland navigation." . . "Nieuwe Waterweg." . . "Noordzeekanaal." . . "Netherlands." . . "Netherlands" . "Rotterdam (Netherlands)" . . "North Sea Canal (Netherlands)" . .