Columbia subject headings:
Africa--Languages--Grammar, Comparative.
Ghana--Languages--Classification.
Ghana--Languages--Grammar.
Ghana--Languages--Phonetics.
Ghana--Social life and customs.
Harvard subject headings:
Africa--Languages--Grammar, Comparative.
Ghana--Languages--Classification.
Ghana--Languages--Grammar.
Ghana--Languages--Phonetics.
Ghana--Languages.
Ghana--Social life and customs.
Princeton subject headings: