"Cheyenne language." . . "Sketch of the Cheyenne grammar" . . . . . . . . . . . . . . . . . . . . "Sketch of the Cheyenne grammar, by Rodolphe Petter" . . . "Sketch of the Cheyenne grammar"@en . "Cheyenne (Volk)" . . . . "Sprache." . . "Grammatik." . .