PM20 subject code (P8484)
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code for a subject category in the 20th Century Press Archives' subject category system
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | PM20 subject code |
code for a subject category in the 20th Century Press Archives' subject category system |
Data type
External identifier
Statements
http://purl.org/pm20/category/subject/s/$1
0 references
https://pm20.zbw.eu/category/subject/s/$1
0 references
Constraints
[a-z]\d*[a-c]?(_Sm\d+(\.[IVX]+([a-z])?)?)?(_\((alt|[A-J]\d*)\))*
0 references