If you use files of the Political Archive as a reference, please always cite them in the following order:
Archive Record group Item number
You can find the current form of citation of a record group (and its files) under the provided information in invenio. Just click on the record group (1) and invenio will show you the recommended citation (2).
To complete the reference of the files include the item number after the last slash.
You can also find the whole citation of a file at the detailed view (Einzelansicht), column “Archivsignatur” (archival reference code).
For the complete reference code please put the abbreviation of the archive and a blank space at first position: PA AA M 72/14594.