@book{2001hokkaidojapankankyoseikatsubuainushisakusuishinshitsuainugochimeihandobukku,
  title = {Ainugo chimei handobukku},
  author = {Hokkaido (Japan). Kankyō Seikatsubu. Ainu Shisaku Suishinshitsu},
  year = {2001},
  url = {https://openlibrary.org/works/OL23429259W}
}