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@ebook{           book:459865,
  Author        = "Richards, E. G.",
  date-added    = "2020-04-10 11:05:14 +0200",
  date-modified = "2020-04-10 11:05:14 +0200",
  Edition       = "1ST",
  ISBN          = "0198504136,9780198504139",
  Keywords      = "history of calendars",
  Publisher     = "Oxford University Press, USA",
  Title         = "Mapping Time: The Calendar",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=E74EFB19A94E6FD25487027608CA1472",
  Year          = "1999",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=E74EFB19A94E6FD25487027608CA1472",
  File          = "Mapping Time The Calendar - Richards (0) (0) (0) - a - a - a.pdf"
}

@ebook{ book:459865, Author = "Richards, E. G.", date-added = "2020-04-10 11:05:14 +0200", date-modified = "2020-04-10 11:05:14 +0200", Edition = "1ST", ISBN = "0198504136,9780198504139", Keywords = "history of calendars", Publisher = "Oxford University Press, USA", Title = "Mapping Time: The Calendar", URL = "http://gen.lib.rus.ec/book/index.php?md5=E74EFB19A94E6FD25487027608CA1472", Year = "1999", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=E74EFB19A94E6FD25487027608CA1472", File = "Mapping Time The Calendar - Richards (0) (0) (0) - a - a - a.pdf" }