Columbia subject headings:
Copper industry and trade--Africa, Sub-Saharan.
Copper mines and mining--Africa, Sub-Saharan.
Copper--Folklore.
Industries, Primitive--Africa, Sub-Saharan.
Industries--Africa, Sub-Saharan.
Harvard subject headings:
Africa, Sub-Saharan--Social life and customs
Copper industry and trade--Africa, Sub-Saharan.
Copper mines and mining--Africa, Sub-Saharan.
Copper--Folklore.
Industries, Primitive--Africa, Sub-Saharan.
Industries--Africa, Sub-Saharan.
Princeton subject headings:
Copper industry and trade--Africa, Sub-Saharan.
Copper mines and mining--Africa, Sub-Saharan.
Copper--Folklore.
Industries, Primitive--Africa, Sub-Saharan.