@book{ BA72673281, author = "Rodger, N. A. M. and National Maritime Museum (Great Britain)", title = "The command of the ocean : a naval history of Britain, 1649-1815", publisher = "Penguin Books in association with the National Maritime Museum", year = "2005", series = "Penguin books", number = "", URL = "https://ci.nii.ac.jp/ncid/BA72673281" }