@Book{sitereport_16403,
 author = "坂田, 和弘",
 title = "灰塚古墳",
 volume = "",
 publisher = "熊本県教育委員会",
 year = 1991,
 series = "熊本県文化財調査報告",
 number = "114",
 url = https://sitereports.nabunken.go.jp/16403,
 }