Columbia subject headings:
Japan--History--Shōwa period, 1926-1989.
Nagako, Empress, consort of Hirohito, Emperor of Japan, 1903-2000.
Harvard subject headings:
Japan--History--Hirohito,--1926-
Nagako, Empress, consort of Hirohito, Emperor of Japan, 1903-2000.
Princeton subject headings:
Japan--History--Shōwa period, 1926-.
Nagako, Consort of Hirohito, Emperor of Japan.