Columbia subject headings:
Ethnology--Papua New Guinea.
Papua New Guinea--Social life and customs.
Primitive societies--First contact with Europeans.
Harvard subject headings:
Ethnology--Papua New Guinea
First contact of aboriginal peoples with Westerners.
Leahy, Michael.
Papua New Guinea--Social life and customs
Princeton subject headings:
Ethnology--Papua New Guinea.
First contact (Anthropology)
Papua New Guinea--Social life and customs.