Columbia subject headings:
Comparative linguistics.
German language--Grammar, Comparative--Russian.
German language--Vocabulary.
Russian language--Grammar, Comparative--German.
Russian language--Vocabulary.
Harvard subject headings:
Comparative linguistics.
German language--Grammar, Comparative--Russian.
German language--Vocabulary.
Russian language--Grammar, Comparative--German.
Russian language--Vocabulary.
Princeton subject headings:
Comparative linguistics.
German language--Grammar, Comparative--Russian.
German language--Vocabulary.
Russian language--Grammar, Comparative--German.
Russian language--Vocabulary.