@Book{sitereport_70727,
 author = "石岡市教育委員会文化振興課, ",
 title = "外城遺跡",
 volume = "",
 publisher = "石岡市教育委員会文化振興課",
 year = 2020,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/70727,
 }