Columbia subject headings:
Freemasons. Logia "Constante Union" no. 23 (Corrientes, Argentina)--History--20th century.
Harvard subject headings:
Freemasons--Argentina--Corrientes--History--20th century.
Freemasons. Logia "Constante Union" no. 23 (Corrientes, Argentina)--History--20th century.
Princeton subject headings: