Columbia subject headings:
Africa--Antiquities.
Paleolithic period--Africa.
Pygmies--History.
Pygmies--Origin.
Harvard subject headings:
Africa--Antiquities.
Aka (African people)
Aka (African people)--Central African Republic--Social life and customs.
Aka language (Central African Republic)--Lexicology.
Central African Republic--Social life and customs.
Paleolithic period--Africa.
Pygmies--History.
Pygmies--Origin.
Pygmies.
Princeton subject headings:
Africa--Antiquities.
Paleolithic period--Africa.
Pygmies--History.
Pygmies--Origin.