Columbia subject headings:
German language--Grammar--Congresses.
German philology--Congresses.
Sekiguchi, Tsugio, 1894-1958--Congresses.
Harvard subject headings:
German language--Grammar--Congresses.
German philology--Congresses.
Sekiguchi, Tsugio, 1894-1958--Congresses.
Princeton subject headings:
German language--Grammar--Congresses.
German philology--Congresses.
Sekiguchi, Tsugio, 1894-1958--Congresses.