Columbia subject headings:
Japan--Economic conditions--1989-
Japan--History--Heisei period, 1989-2019.
Japan--Politics and government--1989-
Harvard subject headings:
Japan--Economic conditions--1989-
Japan--History--Heisei period, 1989-
Japan--Politics and government--1989-
Princeton subject headings:
Japan--Economic conditions--1989-
Japan--History--Heisei period, 1989-
Japan--Politics and government--1989-