@Book{sitereport_10833,
 author = "前島, 直人",
 title = "宍戸城跡",
 volume = "2",
 publisher = "財団法人茨城県教育財団",
 year = 2011,
 series = "茨城県教育財団文化財調査報告",
 number = "342",
 url = https://sitereports.nabunken.go.jp/10833,
 }