How to Cite a Reference Entry in Chicago 18th edition (notes and bibliography)

An entry in a database, directory or catalogue, such as the World Heritage List.

Example in Chicago 18th edition (notes and bibliography)

UNESCO World Heritage Centre. “Great Barrier Reef.” In World Heritage List. UNESCO World Heritage Centre. Accessed October 22, 2026. https://whc.unesco.org/en/list/154/.

Footnote UNESCO World Heritage Centre, “Great Barrier Reef,” in World Heritage List (UNESCO World Heritage Centre), accessed October 22, 2026, https://whc.unesco.org/en/list/154/.

What Chicago 18th edition (notes and bibliography) includes

These are the details of the example above that the style prints, so they are the ones to collect for your own source.

Entry Title
Author(s)
Reference Work
Publisher
URL
Date Accessed

Use the record’s heading as the Entry Title and the database, directory or catalogue as the Reference Work. If the record has no date of its own, leave Date Published empty and fill in Date Accessed.

The formatting comes from the style's own file, so check the finer points against your guide. What to check by hand in Chicago 18th edition (notes and bibliography).