@Book{sitereport_36310,
 author = "大島, 秀俊",
 title = "史跡手宮洞窟",
 volume = "",
 publisher = "小樽市教育委員会",
 year = 1991,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/36310,
 }