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: | |