Columbia subject headings:
Harvard subject headings:
Comparative linguistics--Congresses.
Finnish language--Grammar, Comparative--German--Congresses.
Finnish language--Phraseology--Congresses.
Finnish language--Textbooks for foreign speakers--German--Congresses.
German language--Grammar, Comparative--Finnish--Congresses.
German language--Phraseology--Congresses.
German language--Textbooks for foreign speakers--Finnish--Congresses.
Princeton subject headings:
Finnish language--Phraseology--Congresses.
German language--Phraseology--Congresses.