Category of publication being cited (for example, “ book ”, “ letter ”, “ review ”, “ journal ”, “ patent ”, “ report ”, “ standard ”, “ working-paper ”).
The @publication-type, @publisher-type, and @publication-format attributes replace the @citation-type attribute of prior versions, which provided no clear way to distinguish these different notions.
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | The type of publication, for example,“book” or “patent” |
| Restriction: This attribute may be specified if the element is used. | |