Columbia subject headings:
Emblems.
Heraldry.
Symbolism in art.
Symbolism in literature.
Harvard subject headings:
Emblem books, Spanish--Congresses.
Emblems--Spain--Congresses.
Emblems.
Heraldry.
Mexican literature--To 1800--History and criticism--Congresses.
Spanish literature--Classical period, 1500-1700--History and criticism--Congresses
Symbolism in art.
Symbolism in literature.
Princeton subject headings:
Emblems--Congresses.
Symbolism in art--Congresses.
Symbolism in literature--Congresses.