Columbia subject headings:
Manuscripts, Arabic (Papyri)--Germany--Heidelberg.
Manuscripts, Arabic--Germany--Heidelberg.
Taxation--Islamic countries--History--Sources.
Harvard subject headings:
Manuscripts, Arabic (Papyri)--Germany--Heidelberg.
Manuscripts, Arabic--Germany--Heidelberg.
Taxation--Islamic countries--History--Sources.
Princeton subject headings:
Manuscripts, Arabic (Papyri)--Germany--Heidelberg.
Manuscripts, Arabic--Germany--Heidelberg.
Taxation--Islamic countries--History--Sources.