Columbia subject headings:
Ethnology--Cook Islands--Penrhyn.
Penrhyn (Cook Islands)--Social life and customs.
Polynesians--Social life and customs.
Harvard subject headings:
Ethnology--Cook Islands--Penrhyn Atoll.
Penrhyn Atoll (Cook Islands)--Social life and customs.
Polynesians--Social life and customs.
Princeton subject headings: