Columbia subject headings:
Baptism--History of doctrines--Early church, ca. 30-600.
Baptism.
Justin, Martyr, Saint.
Lord's Supper--History of doctrines--Early church, ca. 30-600.
The Lord's Supper.
Harvard subject headings:
Baptism--History of doctrines.
Justin, Martyr, Saint
Lord's Supper--History of doctrines.
Princeton subject headings: