@Book{sitereport_64508,
 author = "上越市教育委員会, ",
 title = "史跡春日山城跡保存管理計画書",
 volume = "",
 publisher = "上越市教育委員会",
 year = 1980,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/64508,
 }