Columbia subject headings:
German language--Grammar, Comparative--Italian.
German language--Participle.
German language--Passive voice.
Italian language--Grammar, Comparative--German.
Italian language--Participle.
Italian language--Passive voice.
Harvard subject headings:
German language--Grammar, Comparative--Italian.
German language--Participle.
German language--Passive voice.
Italian language--Grammar, Comparative--German.
Italian language--Participle.
Italian language--Passive voice.
Princeton subject headings: