@book{ BA04485131,
  author    = "Yannella, Donald",
  title     = "Ralph Waldo Emerson",
  publisher = "Twayne Publishers",
  year      = "1982",
  series    = "Twayne's United States authors series",
  number    = "TUSAS 414",
  URL       = "http://ci.nii.ac.jp/ncid/BA04485131"
}