@book{ndx13ex6c6,
  title = {レクッカラ;ヘチリ 樺太アイヌ喉鳴らし;樺太アイヌ踊り歌},
  language = {ain},
  url = {https://ndlsearch.ndl.go.jp/books/R100000002-I000008883242}
}