@book{
  author = "喜多山, 幸子",
  title = "中国語",
  year: 2018
  month: 7
  key = "中国語",
  publisher = "白水社",
  address = "東京",
  series = "ニューエクスプレス+ ;",
  ISSN/ISBN = "9784560453957 [4560453950] (: electronic bk)",
  ISSN/ISBN = "9783000073588 [3000073584]",
}