@book{1970hokkaidojapanainubunkahozontaisakukyogikaiainuminzokushi,
  title = {Ainu minzoku shi},
  author = {Hokkaido, Japan. Ainu Bunka Hozon Taisaku Kyōgikai},
  year = {1970},
  language = {ain},
  url = {https://openlibrary.org/works/OL12167311W}
}