@book{
  author = "石井, 哲士朗, 三井, レナータ(1959-)",
  title = "ポーランド語",
  year: 2008
  month: 12
  key = "ポーランド語",
  publisher = "白水社",
  address = "東京",
  series = "ニューエクスプレス ;",
  ISSN/ISBN = "9784560067949 [4560067945]",
}