Boas, Franz and Deloria, Ella. 1939. Dakota grammar. (Memoirs of the National Academy of Sciences, 23.)
@book{nicholsdiversity-Boas1939, address = {Washington, D.C.}, author = {Boas, Franz and Deloria, Ella}, series = {Memoirs of the National Academy of Sciences}, title = {Dakota grammar}, volume = {23}, year = {1939} }