Columbia subject headings:
Reformation--Romania--Transylvania.
Religious literature--History and criticism.
Unitarianism--Controversial literature.
Harvard subject headings:
Reformation--Romania--Transylvania.
Religious literature--History and criticism.
Unitarianism--Controversial literature.
Unitarianism--Doctrinal and controversial works.
Princeton subject headings:
Reformation--Romania--Transylvania.
Religious literature--History and criticism.
Unitarianism--Doctrinal and controversial works.