Mexico D.F. Instituto Indigenista Interamericano, 1969. Paperback. xv, 214p., illustrated with a few b&w site and portrait photographs, charts and line maps; paperbound in 8.5x5.5 inch decorated wraps. Cover-joint has a three-inch split, cover shows mild handling- and dust-soil and a small faint stain, while spine panel bears the hand-lettered category "MEX"; clean and sound within, a good reading copy. Text in Spanish. ediciones especiales : 52.