✓

@Book{            book:731233,
  Author        = "Cohn, P. M.",
  date-added    = "2022-03-08 13:57:28 +0100",
  date-modified = "2022-03-08 13:57:28 +0100",
  Edition       = "2nd",
  ISBN          = "0121791521,9780121791520",
  Publisher     = "Academic Press",
  Series        = "London Mathematical Society Monographs 19",
  Title         = "Free Rings and Their Relations",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=22f0e8138fa253f9a8e4083d7167d3e9",
  Year          = "1985",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=22f0e8138fa253f9a8e4083d7167d3e9",
  File          = "Free Rings and Their Relations.pdf"
}

@Book{ book:731233, Author = "Cohn, P. M.", date-added = "2022-03-08 13:57:28 +0100", date-modified = "2022-03-08 13:57:28 +0100", Edition = "2nd", ISBN = "0121791521,9780121791520", Publisher = "Academic Press", Series = "London Mathematical Society Monographs 19", Title = "Free Rings and Their Relations", URL = "http://gen.lib.rus.ec/book/index.php?md5=22f0e8138fa253f9a8e4083d7167d3e9", Year = "1985", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=22f0e8138fa253f9a8e4083d7167d3e9", File = "Free Rings and Their Relations.pdf" }