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@Book{            book:487081,
  Author        = "Cohn, Paul M.",
  date-added    = "2020-10-25 11:45:10 +0100",
  date-modified = "2020-10-25 11:45:10 +0100",
  Edition       = "1st Edition.",
  ISBN          = "1852336676,9781852336677",
  Title         = "Further Algebra and Applications",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=c660540d76bb20fc54087e6cdcb1e78f",
  Year          = "2003",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=c660540d76bb20fc54087e6cdcb1e78f",
  File          = "Further Algebra and Applications by Paul M. Cohn (z-lib.org) - a.pdf"
}

@Book{ book:487081, Author = "Cohn, Paul M.", date-added = "2020-10-25 11:45:10 +0100", date-modified = "2020-10-25 11:45:10 +0100", Edition = "1st Edition.", ISBN = "1852336676,9781852336677", Title = "Further Algebra and Applications", URL = "http://gen.lib.rus.ec/book/index.php?md5=c660540d76bb20fc54087e6cdcb1e78f", Year = "2003", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=c660540d76bb20fc54087e6cdcb1e78f", File = "Further Algebra and Applications by Paul M. Cohn (z-lib.org) - a.pdf" }