Columbia subject headings:
Afroasiatic languages.
Hamitic languages.
Rössler, Otto, 1907-1991.
Semitic languages.
Harvard subject headings:
Afroasiatic languages.
Hamitic languages.
Semitic languages.
Princeton subject headings:
Afroasiatic languages--Grammar, Comparative.
Hamitic languages--Grammar, Comparative.
Semitic languages--Grammar, Comparative.