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. document genres
7. [documents by form]
8. partial documents

Anotations

Scope note:

Discrete bibliographical items which though once part of a larger whole (e.g., a periodical issue) have been disbound in order that may stand alone. Distinguished from "excerpts" and "offprints" which are printed separately, in that extracts were once physically part of a larger whole.