Columbia subject headings:
Harvard subject headings:
Germany--Relations--Italy--Congresses.
Germany--Relations--Japan--Congresses.
Italy--Relations--Germany--Congresses.
Italy--Relations--Japan--Congresses.
Japan--Relations--Germany--Congresses.
Japan--Relations--Italy--Congresses.
Theater--Germany--History--Congresses.
Theater--Italy--History--Congresses.
Theater--Japan--History--Congresses.
Princeton subject headings:
Theater--Germany--Japanese influences.
Theater--Italy--Japanese influences.
Theater--Japan--German influences.
Theater--Japan--History and criticism.
Theater--Japan--Italian influences.