@Book{sitereport_99090,
 author = "長崎市教育委員会, ",
 title = "四郎ヶ島台場跡",
 volume = "",
 publisher = "長崎市教育委員会",
 year = 2011,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/99090,
 }