Columbia subject headings:
Harvard subject headings:
Engishiki
Rare books--Japan.
Ryō no shūge.
Shoku Nihongi.
Princeton subject headings:
Facsimiles.
Japan--History--To 1185--Sources--Manuscripts--Facsimiles.
Japan--Politics and government--794-1185--Sources--Manuscripts--Facsimiles.
Law--Japan--History--Sources--Manuscripts--Facsimiles.
Manuscripts, Japanese--Facsimiles.