Columbia subject headings:
Catholic Church--Liturgy--Texts--Illustrations.
Codex Vaticanus Rossianus 181.
Illumination of books and manuscripts, Medieval--Germany--Erfurt.
Harvard subject headings:
Catholic Church--Liturgy--Texts--Illustrations.
Codex Vaticanus Rossianus 181.
Illumination of books and manuscripts, German--Germany--Erfurt.
Illumination of books and manuscripts, Medieval--Germany--Erfurt.
Princeton subject headings:
Catholic Church--Liturgy--Texts--Illustrations.
Codex Vaticanus Rossianus 181.
Illumination of books and manuscripts, Medieval--Germany--Erfurt.
Pictures.