The 18th edition of the Chicago Manual of Style, released in September 2024, offers significant updates compared to the 17th edition.

Here is a summary of the key changes:

  • 14.30 Place of publication is now omitted for books
  • 13.20 Page numbers are not required in bibliographies for book chapters
  • 13.78 For works authored by or edited by three to six persons (in previous editions it was two to ten), all names are given in the bibliography.
  • 13.23 Up to six authors are listed in a bibliography entry, if more than six only the first three are listed followed by et. al

See What's New in the 18th Edition for the comprehensive list.

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