Columbia subject headings:
Harvard subject headings:
Ceremonial exchange--Papua New Guinea.
Enga (Papua New Guinean people)--Commerce.
Enga (Papua New Guinean people)--Rites and ceremonies.
Princeton subject headings:
Ceremonial exchange--Papua New Guinea.
Enga (Papua New Guinean people)--Commerce.
Enga (Papua New Guinean people)--Rites and ceremonies.