Mexico D.F. Ediciones Era, 1979. Mass Market Paperback. 422p., three b&w photosections on semi-glazed paperstock, small softbound in 6.5x4.2 inch glossy wraps. The first issue was in 1968; it does not appear to have been revised. Hand-stamped no. 2279 of 2000 copies (sic). An unhandled copy with only slightest edgewear from storage, paper mildly toned throughout, no markings, a very good copy.