@misc{1938batchelorenglishainuvocabulary4ed,
  title = {アイヌ・英・和辭典 第四版 — 英アイヌ語彙 (An Ainu-English-Japanese Dictionary, 4th edition — English-Ainu Vocabulary back-matter)},
  author = {John Batchelor},
  year = {1938}
}