Columbia subject headings:
Ivories, Gothic--Spain.
Ivories, Romanesque--Spain.
Ivories--Spain.
Harvard subject headings:
Christian art and symbolism--Medieval, 500-1500--Spain.
Ivories, Gothic--Spain.
Ivories, Romanesque--Spain.
Ivories--Spain.
Princeton subject headings:
Ivories, Gothic--Spain.
Ivories, Romanesque--Spain.
Ivories--Spain.