The Yakima (Pakiut'lema) lived on the lower course of the Yakima River in south-central Washington and now live with the Klickitat as the Confederated Tribes of the Yakima Indian Reservation of Washington. They speak a Sahaptin Language of the Penutian phylum and numbered over six thousand in the mid-1980s.
Daugherty, Richard D. (1973). The Yakima Peoples. Phoenix, Ariz.: Indian Tribal Series.
Schuster, Helen H. (1982). The Yakimas: A Critical Bibliography. Bloomington: Indiana University Press.