平原印第安人手语(英語:Plains Indian Sign Language,PISL;法語:Langue des Signes Indienne des Plaines;西班牙語:Lenguaje de Signos Indio de las Llanuras),又称平原手语、平原手势谈话(Plains Sign
Henderson, Richard.(1994). “Replicating Dog Travois Travel on the Northern Plains.” Plains Anthropologist, V39:145–59 Iverson, Peter. (2002). Diné: A History