Chicago Manual of Style (CMS) /Turabian Citation Style: Chicago Manual of Style 17th Edition Sample Papers

Part III: Source Citations and Indexes

Note: In previous editions of the Manual, source citations were referred to as documentation.

Chapter 14: Notes and Bibliography

Changed

• The use of ibid. is now discouraged in favor of shortened citations. (14.34)

Source: https://www.chicagomanualofstyle.org/help-tools/what-s-new.html