Norman: University of Oklahoma Press, 1968. xii, 565 p. 8vo. Second edition. 4 fold-out maps. Written with the assistance of Elanor B. Adams and Robert S. Chamberlain. Appendices - incl. facsimile of The Chontal Text, with Spanish and English translation. Glossary. References. Index. Lime green cloth. Dust jacket has a few spots, with minor wear to edge.