Columbia subject headings:
Boff, Leonardo.
Moltmann, Jürgen.
Trinity--History of doctrines--20th century.
Trinity.
Harvard subject headings:
Boff, Leonardo--Contributions in concept of the Trinity.
Boff, Leonardo. Trindade, a sociedade e a libertação.
Christian sociology--History.
Moltmann, Jürgen--Contributions in concept of the Trinity.
Trinity--History of doctrines.
Princeton subject headings: