@book{ BA67152009,
  author    = "国立社会保障・人口問題研究所",
  title     = "わが国夫婦の結婚過程と出生力",
  publisher = "厚生統計協会",
  year      = "2004",
  series    = "出生動向基本調査 / 厚生省人口問題研究所編",
  number    = "第12-14回",
  URL       = "https://ci.nii.ac.jp/ncid/BA67152009"
}