@book{ BA11599527,
  author    = "Croffut, W. A. (William Augustus)",
  title     = "The Vanderbilts and the story of their fortune",
  publisher = "Arno Press",
  year      = "1975",
  series    = "The Leisure class in America",
  number    = "",
  URL       = "http://ci.nii.ac.jp/ncid/BA11599527"
}