@Book{sitereport_31950,
 author = "海保, 孝則",
 title = "上吹入城跡",
 volume = "",
 publisher = "千葉県成田土木事務所 and 山武郡市文化財センター",
 year = 1997,
 series = "山武郡市文化財センター発掘調査報告書",
 number = "38",
 url = https://sitereports.nabunken.go.jp/31950,
 }