AIAF Library

 Black Elk Speaks is a 1932 book by John G. Neihardt, an American poet and writer, who relates the story of Black Elk, an Oglala Lakota medicine man. Black Elk spoke in Lakota and Black Elk's son, Ben Black Elk, who was present during the talks, translated his father's words into English

http://public.gettysburg.edu/~franpe02/files/%5BJohn_G._Neihardt%5D_Black_Elk_Speaks__The_Complete_(z-lib.org).pdf