@Book{sitereport_681,
 author = "森泉, かよ子",
 title = "龍岡城跡",
 volume = "1・2・3・4 ",
 publisher = "佐久市教育委員会",
 year = 2014,
 series = "佐久市埋蔵文化財調査報告書",
 number = "216",
 url = https://sitereports.nabunken.go.jp/681,
 }