Columbia subject headings:
Race discrimination--Spain--Religious aspects--History.
Race relations--Religious aspects--Christianity--History.
Racism--Spain--Religious aspects--History.
Spain--Race relations--Religious aspects--History.
Harvard subject headings:
Christianity and other religions--Spain.
Christianity--Spain.
Spain--Religion
Princeton subject headings:
Blood--Symbolic aspects--Spain.
Christianity and other religions--Spain.
Christianity--Spain.
Spain--Religion.