The sacred oral tradition of the Havasupai as retold by elders and headmen Manakaja and Sinyella 1918-1921 - Manakaja, 1850?-1942; Sinyella, 1848?-1933; Euler, Robert C.; Schwartz, Douglas Wright, 1929-; Tikalsky, Frank D.; Euler, Catherine A.; Nagel, John; Spier, Leslie, 1893-1961; Gunther, Erna, 1896-1982 (University of New Mexico Press, 2010)