Havasupai Indians -- Folklore : The sacred oral tradition of the Havasupai : as retold by elders and headmen Manakaja and Sinyella 1918-1921 / translators, Mark Hanna [and others] ; anthropologists and transcribers, Leslie Spier, and Erma Gunther ; contributors, Robert C. Euler and Douglas W. Schwartz ; contributors and editors, Frank D. Tikalsky, Catherine A. Euler, and John Nagel