@Book{sitereport_96916,
 author = "日立市埋蔵文化財発掘調査会, ",
 title = "助川海防城跡発掘調査報告書",
 volume = "",
 publisher = "日立市教育委員会",
 year = 1999,
 series = "日立市文化財調査報告",
 number = "56",
 url = https://sitereports.nabunken.go.jp/96916,
 }