✓

@Book{            Langfordb,
  Author        = "Langford, Michael and Bilissi, Efthimia",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:27 +0200",
  Edition       = "7th",
  Keywords      = "photography and favourite",
  Publisher     = "Focal Press",
  Title         = "Langford's Advanced Photography",
  Year          = "2008",
  File          = "Langford's Advanced Photography - Langford, Bilissi (0) (0) - a - a.pdf"
}

@Book{ Langfordb, Author = "Langford, Michael and Bilissi, Efthimia", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:27 +0200", Edition = "7th", Keywords = "photography and favourite", Publisher = "Focal Press", Title = "Langford's Advanced Photography", Year = "2008", File = "Langford's Advanced Photography - Langford, Bilissi (0) (0) - a - a.pdf" }