Columbia subject headings:
British Library. Manuscript. Cotton Claudius A. III.
Catholic Church--Liturgy--Texts--Early works to 1800.
Catholic Church. Pontifical--Manuscripts.
Catholic Church. Pontifical.
Pontificals--Texts.
Harvard subject headings:
British Library. Manuscript. Cotton Claudius A. III.
Catholic Church--Liturgy,--Pontificals (Claudius)
Catholic Church--Liturgy--Texts--Early works to 1800.
Catholic Church. Pontifical--Manuscripts.
Catholic Church. Pontifical.
Pontificals--Texts.
Princeton subject headings: