Mexico D.F. Editorial Extemporaneos, 1974. Paperback. 118p., newsprint with b&w photography and news reports in facsimile throughout a double-column running text. Huge paperbound in 13x8.5 inch decorated wraps, the second edition (same year as first issue). A little edgeworn, pages evenly toned, minor stain to front cover. Documentos extemporaneos 1.