Columbia subject headings:
Catholic Church. Codex Juris Canonici. C. 802-844. De sacrosancto missae sacrificio.
Catholic Church. Codex Juris Canonici. Canones 802-844.
Lord's Supper--History.
Mass (Canon law)
Mass.
Sacrifice.
Harvard subject headings:
Catholic Church. Codex juris canonici. C. 802-844: De sacrosancto missae sacrificio.
Lord's Supper--History
Mass
Mass (Canon law)
Sacrifice
Princeton subject headings: