Columbia subject headings:
Harvard subject headings:
Arabic language--Grammar, Comparative--German.
Arabic language--Honorific.
Contrastive linguistics.
German language--Grammar, Comparative--Arabic.
German language--Honorific.
Princeton subject headings:
Arabic language--Grammar, Comparative--German.
Arabic language--Honorific.
Contrastive linguistics.
German language--Grammar, Comparative--Arabic.
German language--Honorific.