@Book{sitereport_347,
 author = "佐久市教育委員会, ",
 title = "史跡龍岡城跡保存管理計画書",
 volume = "",
 publisher = "佐久市教育委員会",
 year = 2013,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/347,
 }