Columbia subject headings:
Culture diffusion--Case studies.
Ethnology--Papua New Guinea.
Ok (Papua New Guinean people)--Social life and customs.
Papua New Guinea--Social life and customs.
Social change--Case studies.
Harvard subject headings:
Culture diffusion--Case studies.
Ok (Papua New Guinean people)--Religion.
Ok (Papua New Guinean people)--Social life and customs.
Papua New Guinea--Social life and customs
Social change--Case studies
Princeton subject headings:
Case studies.
Culture diffusion--Case studies.
Ok (Papua New Guinean people)--Religion.
Ok (Papua New Guinean people)--Social life and customs.
Papua New Guinea--Social life and customs.
Social change--Case studies.