On studying some world history

cover

@Book{            book:816144,
  Author        = {Shih, Ch{\"u}n},
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:26 +0200",
  Publisher     = "FOREIGN LANGUAGES PRESS (PEKING)",
  Title         = "On studying some world history",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=89BDF44131D1CA7E1192998CA32CA420",
  Year          = "1973",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=89BDF44131D1CA7E1192998CA32CA420",
  File          = "On studying some world history - Shih (0) (0) - a - a.pdf"
}

@Book{ book:816144, Author = {Shih, Ch{\"u}n}, date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:26 +0200", Publisher = "FOREIGN LANGUAGES PRESS (PEKING)", Title = "On studying some world history", URL = "http://gen.lib.rus.ec/book/index.php?md5=89BDF44131D1CA7E1192998CA32CA420", Year = "1973", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=89BDF44131D1CA7E1192998CA32CA420", File = "On studying some world history - Shih (0) (0) - a - a.pdf" }