Mails, Thomas E. The mystic warriors of the Plains [by] Thomas E. Mails. - Garden City, N.Y., Doubleday, 1972. - xvii, 618 p. illus. 32 cm. Bibliography: p. 601-606. ISBN: 038504741X LCCN: 72076191 Subjects--Topical Terms: Indians of North America--Great Plains. LC Class. No.: E78.G73 / M34 Dewey Class. No.: 970.4/8