@Book{sitereport_131707,
 author = "雨宮, 龍太郎",
 title = "市原市西国吉横穴群",
 volume = "",
 publisher = "千葉県県土整備部",
 year = 2010,
 series = "千葉県教育振興財団調査報告",
 number = "648",
 url = https://sitereports.nabunken.go.jp/131707,
 }