Columbia subject headings:
Harvard subject headings:
German language--Phraseology--Congresses.
German language--Usage--Congresses.
German literature--History and criticism--Congresses
Social norms in literature--Congresses.
Princeton subject headings:
German language--Phraseology--Congresses.
German language--Usage--Congresses.
German literature--History and criticism--Congresses.
Social norms in literature--Congresses.