Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. information artifacts
7. [information artifacts by function]
8. identifying artifacts
9. identification numbers and codes
10. identification numbers

Anotations

Scope note:

In bibliography, 10- or 13-digit number assigned before publication to a book or edition, which identifies the work’s national, geographic, language, or other convenient group and its publisher, title, edition, and volume number.