@book{1926sasakiainukumagarikumamatsuri,
  title = {アイヌの熊狩と熊祭},
  author = {佐々木長左衛門},
  year = {1926},
  language = {jpn},
  url = {https://dl.ndl.go.jp/api/iiif/1019362/manifest.json}
}