Reference: Boas and Yampolsky 1948

Boas, Franz & Helene Boas Yampolsky. 1948. Kwakiutl dictionary. Unpublished manuscript, American Philosophical Society.

@article{boas1948kwakiutl,
  author  = {Boas, Franz and Yampolsky, Helene Boas},
  journal = {Unpublished manuscript, American Philosophical Society},
  title   = {Kwakiutl dictionary},
  year    = {1948}
}