Nkebi ahịrịokwu nke mbụ: Ọ hapụrụ nwunye ya, onye bụbu Barbara Crutchley, ụmụ ya ndị nwoke bụ́ Norman F. Boas na Donald P. Boas na nwa ya nwanyị, bụ́ Helen Tuthill Sisson. Nkebi ahịrịokwu nke abụọ: Ọ hapụrụ nwunye ya, bụbu Helen Tuthill Sisson, ụmụ ya ndị nwoke bụ́ Norman F. Boas na Donald P. Boas na nwa ya nwanyị, bụ́ Barbara Crutchley. Ajụjụ: Ọ̀ bụ otu ihe ka ahịrịokwu nke mbụ na nke abụọ pụtara? Ee ma ọ bụ Ee e?
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