Columbia subject headings:
Christian sects--Dictionaries.
Christianity--20th century--Dictionaries.
Religions--Dictionaries.
Harvard subject headings:
Christian sects
Christian sects--Dictionaries.
Christianity
Christianity--20th century--Dictionaries.
Christianity--Statistics.
Ecclesiastical geography.
Religions--Dictionaries
Princeton subject headings:
Christianity--Dictionaries.
Christianity--Statistics.
Dictionaries.