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@Book{            Quine:1986,
  Author        = "Quine, W. V.",
  date-added    = "2020-05-31 12:18:03 +0200",
  date-modified = "2020-05-31 12:19:30 +0200",
  Edition       = "2nd",
  ISBN          = "0674665635,9780674665637,013663625X,9780136636250",
  Title         = "Philosophy of Logic",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=1748276bc17ef7af5c423cf99ccce688",
  Year          = "1986",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=1748276bc17ef7af5c423cf99ccce688",
  File          = "Philosophy of Logic 2nd Edition by W. V. Quine (z-lib.org) - a.pdf"
}

@Book{ Quine:1986, Author = "Quine, W. V.", date-added = "2020-05-31 12:18:03 +0200", date-modified = "2020-05-31 12:19:30 +0200", Edition = "2nd", ISBN = "0674665635,9780674665637,013663625X,9780136636250", Title = "Philosophy of Logic", URL = "http://gen.lib.rus.ec/book/index.php?md5=1748276bc17ef7af5c423cf99ccce688", Year = "1986", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=1748276bc17ef7af5c423cf99ccce688", File = "Philosophy of Logic 2nd Edition by W. V. Quine (z-lib.org) - a.pdf" }